Pure frontend · Zero dependencies · Local processing · Never uploads to server
Free online tools collection covering JSON development, PDF processing, image editing, text processing, encryption & security across 33 categories. All tools run entirely in your browser — no registration, no server uploads, your data never leaves your device.
Free online image metadata remover. Strip EXIF data from photos and images completely. Remove GPS location, camera info, timestamps, and personal metadata. 100% client-side, no upload. Protect your privacy.
Use NowFree online ROT13 encoder/decoder with ROT5, ROT13, ROT18, ROT47 Caesar cipher variants. Real-time text transformation. Pure frontend, no server upload.
Use NowFree online pixel ruler tool. Measure pixel distances, angles, and dimensions on uploaded images. Click two points to measure. Perfect for designers and frontend developers. 100% client-side.
Use NowFree online PNG to WebP converter. Convert PNG images to WebP format with adjustable quality. Reduce file size by 30%+. Preserves transparency. Pure frontend, no upload.
Use NowFree online WebP to JPG converter. Convert WebP images to JPG/JPEG format with adjustable quality. Ensures maximum compatibility across platforms. Pure frontend, no upload.
Use NowFree online BIC/SWIFT code validator. Validate SWIFT/BIC bank identifier code format. Supports 8-digit and 11-digit codes, batch validation, real-time parsing of bank/ country/ location/ branch codes. Pure frontend processing.
Use NowFree online text case converter. Convert between camelCase, PascalCase, snake_case, kebab-case, UPPER_CASE, lower case, and Title Case. Real-time conversion, one-click copy. Pure frontend. Perfect for developers.
Use NowFree online JSON to XML converter. Convert JSON data to XML format with one click. Supports nested objects, arrays, custom root element names, and multiple indentation options. Pure frontend, no server upload.
Use NowFree online cron expression generator. Build standard cron schedule expressions through a visual interface. Supports common presets, detailed field configuration, real-time preview with description. Pure frontend. Perfect for sysadmins.
Use NowFree online CSS gradient generator. Create linear and radial gradients interactively. Customize colors, angle, position, and color stops with real-time preview. One-click CSS code copy. Perfect for web design and UI development.
Use NowFree online email address validator. Check email format correctness including syntax validation, domain format checking, and common typo detection. Supports batch validation. Pure frontend, no server upload.
Use NowFree online PDF page reorder tool. Use buttons to rearrange PDF pages. Pure frontend, no server upload. Reorder, delete, and duplicate pages.
Use NowFree online PDF page number tool. Add page numbers with customizable position, font size, and starting number. Pure frontend.
Use NowFree online image threshold/binarization tool. Adjustable threshold with real-time preview. Pure frontend canvas processing.
Use NowFree online Base32 decoder. Decode Base32 strings back to original text. RFC 4648 compliant. Pure frontend.
Use NowFree online Base58 decoder. Decode Base58 strings to hex or text. Supports Bitcoin and Base58Check. Pure frontend.
Use NowFree online Excel to CSV converter. Convert XLSX/XLS to CSV with sheet selection and custom delimiters. Pure frontend.
Use NowFree online time calculator. Calculate duration between times, add/subtract hours and minutes, convert time units. Supports 12/24h format, multi-unit display (hours+minutes, total minutes, seconds). Client-side only.
Use NowFree online text to HTML converter. Convert plain text to formatted HTML with one click. Auto-convert line breaks to paragraphs, escape HTML entities. Multiple output modes, real-time preview. Client-side.
Use NowFree online color mixer. Mix two colors to create new colors. Supports HEX/RGB/HSL input, multiple blend modes (normal/multiply/screen/overlay). Real-time preview, one-click copy. Perfect for UI design.
Use NowFree online CSS background pattern generator. Create stripes, dots, checkerboard, zigzag and more. Customize colors, size, spacing. Real-time preview, one-click CSS copy. Perfect for web design.
Use NowFree online wavy text generator. Create wavy/bouncing/shimmering text animations. Multiple wave types, customizable colors, amplitude, frequency. Live preview, one-click CSS export. Great for social media headers.
Use NowFree online work hours calculator. Track daily and weekly work hours, overtime, and undertime. Enter clock-in/out times and break duration. Compare against standard hours. Perfect for employees and freelancers.
Use NowFree online Zalgo text generator. Transform normal text into corrupted, creepy Zalgo-style text. Adjustable intensity, one-click copy. Perfect for horror titles, dark aesthetics, and memes. Client-side only.
Use NowFree online battery status checker. View device battery info using Battery API. Check battery level, charging status, remaining time. Dark mode support. Client-side, private. Perfect for laptop and mobile users.
Use NowFree online gradient background pattern generator. 60+ preset color schemes. Linear/radial gradients, angle adjustment, reverse gradient. Live preview, one-click CSS copy. Client-side only.
Use NowFree online link preview generator. Enter URL to generate social share card preview. View OG tags, title, description, URL info. Client-side processing. Perfect for SEO and social media.
Use NowFree online Morse code player. Convert text to Morse code audio. Adjustable speed (WPM) and tone frequency. Visual sync display of dots and dashes. Client-side using Web Audio API.
Use NowFree online video frame grabber. Extract still frames from video files. Supports MP4, WebM, and more. Frame-by-frame seeking, one-click capture, download as PNG. Client-side, no upload.
Use NowFree online HTML to Pug (Jade) template engine converter. Convert HTML code to Pug syntax instantly. Supports tags, attributes, classes, IDs, nesting, and text content. No setup needed, client-side only, perfect for Node.js and Express developers.
Use NowFree online carbon footprint calculator. Estimate your annual CO2 emissions based on transportation (car/flight), home energy (electricity/gas), diet, and shopping habits. Understand your climate impact and get reduction tips. Client-side only, no data upload.
Use NowFree online CSS text outline/stroke generator. Add stroke and glow effects to text using text-stroke and text-shadow. Customize stroke width, color, shadow blur and offset. Live preview, one-click CSS copy. Perfect for posters, logos, social media covers, and web headings.
Use NowFree online unit price calculator. Calculate price per unit (per gram, per liter, per item) to compare products and find the best deals. Supports weight (g/kg/lb/oz), volume (ml/L/gal), and count units. Compare multiple items side by side. Client-side only.
Use NowFree online CSV to Markdown table converter. Convert CSV data to GitHub-flavored Markdown tables instantly. Customize delimiter, header row, and text alignment. Live preview, one-click copy. Client-side only, perfect for documentation, GitHub README, and data reports.
Use NowFree online reading speed test. Measure your reading speed in words per minute (WPM). Choose from different difficulty levels, track your reading time, and get your WPM score with comprehension check. Compare with averages (adults: 200-300 WPM). Client-side, no registration needed.
Use NowFree online CSS toggle switch generator. Visually create toggle buttons in various styles - slider, iOS-style, pill-style. Customize colors, size, labels, and toggle state. Live preview, one-click CSS copy. Perfect for form settings and control panels.
Use NowFree online CSS tooltip generator. Visually create pure CSS tooltip bubbles. Supports top/bottom/left/right placement, custom arrow position, colors, border-radius, shadows, and animations. Live preview, one-click CSS copy. Perfect for UI hints and interactive feedback.
Use NowFree online CSS toast notification generator. Visually create web message notifications. Supports success, warning, error, info types. Customize position, animation, color, icons, and auto-dismiss timing. Live preview, one-click CSS+HTML copy. Great for web app feedback.
Use NowFree online CSS typewriter effect generator. Visually create text typing animations. Customize typing speed, cursor style (pipe/underscore/blinking block), font color and size. Live preview, one-click CSS+HTML copy. Perfect for hero sections, personal bios, and dynamic text.
Use NowFree online CSS card component generator. Visually create card UI in various styles - image cards, profile cards, product cards, blog cards. Customize border-radius, shadows, borders, gradient backgrounds, and hover animations. Live preview, one-click CSS+HTML copy.
Use NowFree online CSS image hover effect generator. Visually create beautiful image hover animations. Supports zoom, rotate, fade, slide, overlay, border animation effects. Customize transition time, color, text overlay, and border style. Live preview, one-click CSS+HTML copy.
Use NowFree online audio waveform visualizer. Upload audio files (MP3, WAV, OGG, etc.) and generate real-time waveform visualization. Supports playback controls, custom colors, zoom, and PNG export. 100% client-side.
Use NowFree online JSON escape/unescape tool. Escape or unescape special characters in JSON strings including quotes, backslashes, newlines, and tabs. Perfect for API debugging, code generation. Client-side.
Use NowFree online batch image watermark tool. Add text or image watermarks to multiple photos at once. Customize text, color, opacity, size, position, and rotation. Batch process and download as ZIP. 100% client-side.
Use NowFree online CSS speech bubble generator. Visually create message bubbles and tooltips with CSS triangle arrows. Supports top/bottom/left/right arrow placement, custom colors, border-radius, shadows. Live preview, copy code.
Use NowFree online file to Base64 converter. Convert any file (images, documents, audio, video) to Base64 data URI string. Supports drag & drop, real-time file info preview. 100% client-side processing.
Use Now免费在线点击速度测试（CPS测试），测量每秒点击次数。支持5秒、10秒、30秒、60秒多种时长模式。显示实时点击统计、最高纪录和速度曲线。考验手速和反应，适合游戏玩家和休闲娱乐。
Use NowFree online color harmony generator. Automatically generate harmonious color schemes based on color theory. Supports complementary, analogous, triadic, tetradic schemes. Adjust hue, saturation, brightness. Client-side only.
Use NowFree online CSS shape generator. Create geometric shapes (circles, triangles, hexagons, stars) using clip-path. Visual editor, live preview, one-click CSS copy. Perfect for web designers and frontend developers.
Use NowFree online CSV viewer. Quickly preview and browse CSV/TSV file content. Supports large files, auto encoding detection, search filter, column sorting, and JSON export. Client-side only, your data stays private.
Use NowFree online equation grapher. Plot mathematical function curves on Canvas. Supports linear, quadratic, trigonometric, exponential, logarithmic functions. Adjustable axis ranges, shows key points and intersections. Great for students.
Use NowFree online Markdown table generator. Create and edit Markdown tables with a visual interface. Customize columns, rows, cell merging, text alignment. One-click Markdown code generation. Perfect for blog posts and README files.
Use NowFree online emoji translator. Convert text to emoji, look up emoji meanings, browse 3000+ emoji dictionary. 100% private, client-side only.
Use NowFree online digital clock with full screen real-time display. Supports 12/24h format, 5 themes (dark/light/neon/forest/sunset). Perfect for desktop widget, projection.
Use NowFree sleep cycle calculator based on 90-minute sleep cycles. Find optimal bedtime or wake-up time with smart alarm and sleep tips.
Use NowFree online CSS to Less converter. Instantly convert CSS to nested Less syntax with intelligent selector analysis, variable extraction, and mixin conversion.
Use NowFree deposit interest calculator for fixed deposits and installment savings. Calculate maturity amount.
Use NowFree electricity cost calculator. Calculate daily/monthly/yearly costs based on appliance power and usage.
Use NowFree online GPA calculator supporting 4.0 scale, 5.0 scale, and percentage conversion.
Use NowFree fuel cost calculator. Enter distance, fuel consumption, and price to estimate trip cost.
Use NowFree investment calculator for compound interest and SIP. Calculate final returns.
Use NowFree final exam calculator. Calculate what score you need on your final exam.
Use NowFree shipping cost calculator. Estimate delivery costs based on package weight and distance.
Use NowFree online Glassmorphism CSS generator. Visually adjust blur, opacity, color, border radius, and saturation for stunning frosted glass effects. Real-time preview with multiple gradient backgrounds. Copy CSS code instantly. Pure frontend.
Use NowFree online YAML to JSON and JSON to YAML converter. Real-time conversion with syntax highlighting. Parse large YAML/JSON files instantly. One-click copy. Pure frontend, no upload.
Use NowFree online CSS gradient generator. Create beautiful linear and radial gradients with multiple color stops, custom angles, and positions. 10 built-in presets. Real-time preview. Copy CSS code instantly. Pure frontend.
Use NowFree online Image to Base64 converter. Drag and drop or paste images, convert to Data URL or raw Base64. Real-time preview with file info. Supports PNG/JPG/GIF/WebP/SVG. Pure frontend, no upload.
Use NowFree online clock with analog and digital modes. View time across 20 world time zones. Display major world cities' current time. Real-time, pure frontend.
Use NowFree online CSS backdrop-filter (glassmorphism) generator. Visually adjust blur, brightness, contrast, saturation and more. Real-time glass effect preview with multiple filter combinations. Copy CSS code instantly. Pure frontend, no data uploaded.
Use NowFree online CSS border-image generator. Visually adjust gradient colors, slice, width, repeat, and outset for stunning gradient borders. Supports solid/dashed/dotted border styles. Copy CSS code instantly. Pure frontend processing.
Use NowFree online CSS writing-mode generator. Visually adjust horizontal/vertical text direction with vertical-rl support for CJK text. Control text-orientation and direction. Copy CSS code instantly. Pure frontend, no data uploaded.
Use NowFree online CSS overscroll-behavior generator. Control scroll chaining behavior, prevent pull-to-refresh, and optimize modal/sidebar scrolling. Supports auto/contain/none modes. Copy CSS code instantly. Pure frontend processing.
Use NowFree online CSS smooth scroll generator. Visually adjust scroll-behavior, scroll-padding, and scroll-margin. Switch between smooth and auto modes with anchor scroll demo. Copy CSS code instantly. Pure frontend processing.
Use NowFree online CSS caret-color generator. Customize text input cursor color for inputs, password fields, and textareas. Supports custom color, auto, currentColor, and transparent. Real-time preview. Copy CSS code instantly. Pure frontend processing.
Use NowFree online Excel to JSON converter. Upload .xlsx/.xls/.csv files and convert to JSON instantly. Customizable output format (array/object), data preview with table view, download as .json file. Powered by SheetJS, pure frontend processing, your data never leaves your browser.
Use NowFree online Video to GIF converter. Upload MP4/WebM/AVI/MOV videos and convert clips to animated GIFs. Trim start/end time, adjust frame rate (FPS), resize output. Pure frontend Canvas-based processing, no upload required, 100% local.
Use NowFree online dice roller simulator supporting D4/D6/D8/D10/D12/D20/D100 and custom dice. 3D drop animations, quick presets (Advantage/Disadvantage, Fireball, etc.), roll history with sum/average/high/low stats. Roll 1-20 dice at once. Perfect for D&D, tabletop RPGs, board games, and probability education. Cryptographically secure RNG. Pure frontend.
Use NowFree online decimal to fraction calculator. Convert decimals to simplified fractions instantly. Supports terminating and repeating decimals (e.g., 0.333... = 1/3), mixed numbers and improper fractions, BigInt precision for large numbers. Shows detailed step-by-step solutions. Perfect for students, teachers, and engineers. Pure frontend.
Use NowFree online CSS Reset Generator. Generate CSS Reset/Normalize code with one click. Choose between Normalize (recommended) or Hard Reset mode. Customize box-sizing, margin/padding reset, list styles, link decoration, button resets, responsive images, and table collapsing. One-click CSS copy. Pure frontend, zero dependencies.
Use NowFree online palindrome checker. Quickly check if a string reads the same forward and backward. Supports English and Unicode with case-insensitive detection, ignore spaces and punctuation. Highlight matching/mismatching characters and find the longest palindromic substring. Pure frontend, zero dependencies.
Use NowFree online China income tax calculator with 2026 latest tax brackets. Supports salary and year-end bonus taxation with social insurance deductions and special deductions. Compare separate vs combined bonus taxation to find the optimal option. Pure frontend, zero dependencies.
Use NowFree online CSS Container Query (@container) generator. Visually build responsive container queries with container-type, custom container names, and multiple breakpoints. Drag to resize and preview how components respond to container size changes. One-click CSS copy. Pure frontend.
Use NowFree online CSS line-clamp generator for multi-line text truncation. Visual preview with adjustable line count (1-10), font size, line-height, and container width. See ellipsis effects in real-time, enable hover expand to reveal full text. One-click CSS code copy. Pure frontend, zero dependencies.
Use NowFree online CSS object-fit visual generator. Preview fill/contain/cover/none/scale-down image fit modes in real-time. Upload custom images, switch test images (landscape/portrait/square/panorama/logo), adjust container size and object-position. Side-by-side comparison of all five modes. Pure frontend, zero dependencies.
Use NowFree online Bookmarklet Generator. Convert JavaScript code into a drag-to-bookmarks-bar bookmarklet. Supports code minification, URL encoding, IIFE wrapping, HTML export, and built-in preset templates. Pure frontend, zero dependencies, code never uploaded.
Use Now免费在线卡路里计算器，支持BMR基础代谢率、TDEE每日总能量消耗计算，自动推荐每日热量摄入和宏量营养素分配。纯前端本地计算，数据绝不上传服务器。
Use Now免费在线字符编码查看器，输入任意字符即可查看Unicode码点、UTF-8/UTF-16字节、HTML实体、JS/CSS转义、URL编码等多种编码表示。纯前端本地处理，数据不上传服务器。
Use Now免费在线代码截图生成器，将代码转换为高清精美图片。支持20+种编程语言语法高亮、多种主题风格、Mac窗口装饰，一键下载PNG图片分享。纯前端本地处理，数据不上传。
Use Now免费在线色彩明度生成器，输入任意颜色即可生成同色系浅色(Tint)和深色(Shade)渐变。支持HEX、RGB、HSL格式，一键复制色值，设计师配色必备工具。
Use Now免费在线信用卡号生成器，基于Luhn算法生成有效测试卡号，支持Visa、MasterCard、American Express等主流卡组织。纯前端处理，数据不上传服务器。
Use Now免费在线信用卡号校验工具，支持Visa、Mastercard、银联、Amex等主流卡种的Luhn算法验证，自动识别卡类型，生成测试卡号，纯前端本地处理。
Use Now免费在线CSS盒模型计算器，可视化显示内容区、内边距、边框、外边距，支持content-box和border-box模式切换，实时计算总宽高并生成CSS代码。
Use Now免费在线CSS按钮生成器，可视化设计漂亮按钮样式，实时预览并一键复制CSS代码。支持纯色、渐变、描边、3D、阴影等多种风格，纯前端处理无需服务器。
Use Now免费在线CSS Clamp计算器，一键生成响应式字体大小和元素尺寸的clamp()代码。支持流体排版、视口自适应，纯前端本地处理，数据不上传服务器。
Use Now免费在线CSS clip-path生成器，支持多边形、圆形、椭圆、圆角矩形等形状，实时预览裁剪效果，一键复制CSS代码。纯前端本地运行。
Use NowFree online CSS clip-path animation generator. Visually edit clip-path shapes and add animation effects. 16 shape transitions, real-time preview, one-click copy. Runs 100% locally.
Use Now免费在线CSS Cubic-Bezier时间函数生成器，可视化编辑贝塞尔曲线，实时预览动画效果，一键生成CSS代码。支持多种预设缓动函数。
Use Now免费在线CSS滤镜生成器，实时调节模糊、亮度、对比度、饱和度等滤镜效果，支持图片上传预览，一键复制CSS代码。纯前端运行，数据不上传服务器。
Use Now免费在线CSS毛玻璃效果生成器，实时预览并生成Glassmorphism风格CSS代码。支持自定义模糊度、透明度、圆角、边框等参数，纯前端本地处理，数据不上传服务器。
Use Now免费在线CSS背景图案生成器，支持点阵、网格、斜线、条纹、六边形等20+种图案，实时预览，一键复制CSS代码。纯前端零依赖，无需上传图片。
Use Now免费在线CSS文字阴影生成器，支持多层阴影叠加、实时预览、一键复制CSS代码。提供霓虹灯、浮雕、3D文字等预设效果，纯前端处理不上传服务器。
Use Now免费在线CSS转Tailwind转换器，将传统CSS代码一键转换为Tailwind CSS工具类名。支持颜色、间距、布局、字体等常用属性映射，纯前端本地处理，数据不上传服务器。
Use Now免费在线CSS过渡动画生成器，可视化配置transition属性，实时预览过渡效果，一键复制CSS代码。支持自定义缓动函数、多属性组合。纯前端处理。
Use Now免费在线数据存储单位转换器，支持字节B、KB、MB、GB、TB、PB、EB、ZB、YB等单位互转，支持十进制SI和二进制IEC两种标准，纯前端本地计算。
Use Now免费在线下载时间计算器，输入文件大小和网络带宽，即时计算下载所需时间。支持B/KB/MB/GB/TB和bps/Kbps/Mbps/Gbps单位换算，纯前端零上传。
Use Now免费在线假数据生成器，一键生成真实感测试数据：姓名、邮箱、手机号、地址、信用卡号、UUID等。纯前端处理，数据不上传服务器，支持CSV/JSON导出。
Use Now免费在线文件类型识别器，通过Magic Bytes文件头签名自动检测文件格式。支持图片、文档、音频、视频等50+种文件类型识别，纯前端本地处理不上传服务器。
Use Now免费在线HTML实体编码解码工具，支持将特殊字符转为&等HTML实体，或反向还原。纯前端本地处理，零上传，支持批量转换与常用实体速查。
Use Now免费在线图片背景去除工具，纯前端Canvas处理无需上传服务器。支持自动去除背景、手动选色去背、容差调节，导出透明PNG。适用于证件照、商品图、LOGO抠图。
Use Now免费在线图片批量压缩工具，支持JPG/PNG/WebP多格式，纯前端本地处理，数据不上传服务器。可调节压缩质量，一键批量下载压缩结果。
Use Now免费在线批量图片调整大小工具，支持拖放上传多张图片，一键按预设尺寸（微信/Instagram/Twitter/YouTube等）或自定义尺寸批量调整，纯前端本地处理，数据不上传服务器。
Use Now免费在线图片主色调提取工具，一键分析图片色彩，提取主色、辅色和平均色，自动生成色板与配色方案，纯前端本地处理，图片不上传服务器。支持PNG、JPG、WebP等格式。
Use Now免费在线图片EXIF信息查看器，纯前端本地解析照片元数据。支持查看相机型号、拍摄时间、曝光参数、GPS坐标、镜头信息，数据不上传服务器，保护隐私安全。
Use Now免费在线图片精灵图生成器，上传多张图片自动合成为CSS Sprite，支持水平/垂直/网格排列，实时预览并生成CSS代码，纯前端本地处理，数据不上传服务器。
Use Now免费在线JSON Schema生成器，粘贴JSON示例即可自动生成JSON Schema定义。支持Draft 7标准，智能推断类型、必填字段和数组元素类型。纯前端处理，数据不上传服务器。
Use Now免费在线JSON转SQL工具，支持将JSON数组或对象自动转换为MySQL、PostgreSQL、SQLite、SQL Server的INSERT语句。纯前端本地处理，数据不上传服务器。
Use Now免费在线JSON转TypeScript接口生成器。一键将JSON数据转换为TypeScript类型定义，支持嵌套对象、数组类型推断、JSDoc注释，纯前端本地处理。
Use Now免费在线JSON与XML互转工具，支持JSON转XML、XML转JSON，纯前端本地处理，支持格式化美化、压缩、文件上传导出。数据不上传服务器。
Use Now免费在线JSONPath查询测试器，支持实时解析JSON数据、测试JSONPath表达式、查看匹配结果。纯前端本地处理，支持递归搜索、过滤表达式、数组切片。
Use Now免费在线文本可读性分析器，支持Flesch、Flesch-Kincaid、SMOG、Coleman-Liau、Gunning Fog、ARI等6大权威公式评分，自动检测阅读难度等级。纯前端处理，数据不上传服务器。
Use Now免费在线robots.txt生成器，一键生成符合搜索引擎规范的robots.txt文件。支持WordPress、Shopify等预设模板，纯前端本地处理。
Use Now免费在线文本实体提取工具，一键从文本中批量提取URL链接、邮箱地址、手机号、IP地址、身份证号、日期等信息。纯前端本地处理，数据不上传服务器。
Use Now免费在线文本转表格工具，支持CSV、TSV、空格分隔文本一键转换为可编辑HTML表格，自动识别分隔符，支持导出CSV和Markdown格式，纯前端本地处理。
Use NowVisually build HTTP requests and generate cURL commands with one click. Supports GET/POST/PUT and 5 other methods, Headers, Body, and Query parameters. Also reverse-parses cURL commands. Pure frontend processing.
Use NowGenerate random colors, color schemes, complementary colors, analogous colors, and gradients. Supports HEX/RGB/HSL conversion with favorites and CSS export. Pure frontend local processing.
Use NowFree online image border radius generator. Upload images and add rounded corners with adjustable radius, individual corners, and background colors. Supports PNG/JPG/WebP export. Pure frontend processing.
Use NowConvert photos to retro pixel art instantly. Adjustable pixel size, color palette limit, real-time preview, and PNG download. Pure client-side processing.
Use NowFree online VAT calculator supporting conversion between tax-inclusive and tax-exclusive prices with preset rates for China, US, EU, Japan and more. Pure frontend local calculation.
Use NowFree online SVG wave generator. Create beautiful wave shapes, sawtooth waves, circular waves, and sine waves with custom colors, sizes, and peak counts. Copy code in one click for web backgrounds and dividers. Pure frontend local processing.
Use NowEnter a YouTube video URL to get HD cover thumbnails in multiple resolutions including maxresdefault and hqdefault. One-click download. Pure frontend local processing
Use NowCode line counter supporting multiple programming languages. Automatically identifies empty lines, comment lines, and code lines. Supports file drag & drop and code paste. Pure frontend local processing.
Use NowGenerate pie, bar, line, and doughnut charts. Pure frontend local rendering with support for exporting high-quality PNG images.
Use NowMermaid-based live rendering. Supports flowcharts, sequence diagrams, Gantt charts, class diagrams, state diagrams, and more. Export PNG/SVG.
Use NowFree online notepad with auto-save, word count, fullscreen editing, and TXT download. Pure client-side, no server upload.
Use NowGenerate accurate Git commands for 19 common operations with visual parameter configuration. No need to memorize complex syntax. Pure client-side.
Use NowDetect 20+ browser parameters instantly, including User Agent, resolution, OS version, hardware info, and Web API support. Pure client-side detection.
Use NowCryptographically secure random password generation. Supports WiFi/Banking/API Key presets, real-time entropy check, and bulk generation.
Use NowGenerate QR codes locally. Supports custom colors, size adjustment, logo embedding, bulk generation, and PNG/SVG download.
Use NowFree online countdown timer and stopwatch. Sound alerts, fullscreen mode, keyboard shortcuts, lap records. Perfect for work, study, fitness, and cooking.
Use NowMillisecond-precision stopwatch with lap recording, statistics, and keyboard shortcuts. Great for sports training, productivity testing, and cooking.
Use NowPure frontend JSON processing. Supports formatting, minifying, validation, tree view with folding, and JSONPath queries.
Use NowOnline Base64 encoder and decoder. Supports URL-safe mode, auto-detect, full UTF-8 support. Pure frontend processing.
Use NowOnline Base32 encoder and decoder. Supports RFC 4648 standard, auto-detect, full UTF-8 support. Pure frontend processing.
Use NowOnline Base85 (Ascii85) encoder and decoder. Supports Adobe Ascii85 and Z85 formats. Pure frontend processing.
Use NowOnline text to ASCII art generator. Supports multiple character sets, font size adjustment, real-time preview. Pure client-side processing.
Use NowInstantly dissect URL protocol, domain, path, query parameters, and fragment. Supports reverse URL building and parameter encoding/decoding.
Use NowOnline hexadecimal converter. Supports text to hex, hex to text, and file to hex with multiple format options. Pure client-side processing.
Use NowConvert between any bases from 2 to 36 in real-time. One-click copy, ASCII preview. Pure frontend processing, no server uploads.
Use NowConvert Arabic numerals to English words, uppercase, currency, and ordinal formats. Essential for checks, invoices, and contracts. Pure frontend processing.
Use NowConvert between Arabic numbers and Roman numerals both ways, with history, reference tables, and batch conversion. Perfect for learning, design, and historical research. Pure frontend processing.
Use NowConvert PNG/JPG/GIF/WebP/SVG images to Base64 Data URI. Drag & drop upload, batch conversion, one-click copy. Pure frontend processing.
Use NowOne-click transform blog posts and transcripts into LinkedIn, Twitter, email newsletter, Instagram, and YouTube Shorts formats. Pure frontend, zero dependencies.
Use NowFree online IP lookup. Check your own IP or any IP. Shows country, city, ISP, coordinates. Full IPv4 and IPv6 support.
Use NowFree online IP subnet calculator for IPv4. Supports CIDR calculation, subnet division, network and broadcast address lookup. Pure frontend, essential for network engineers.
Use NowURL encoding and decoding tool. Supports encodeURI/encodeURIComponent modes, batch processing, and auto-detect.
Use NowOnline string escape and unescape tool supporting JSON, HTML, URL, Regex, JavaScript, SQL, and XML. Pure client-side processing.
Use NowPick colors from anywhere on your screen via the EyeDropper API. Supports HEX/RGB/HSL/HSV/CMYK formats, contrast check, similar colors, and history.
Use NowHEX/RGB/HSL/HSV/CMYK converter, palette generator, WCAG contrast checker, and gradient generator.
Use NowReal-time WCAG contrast ratio calculation, supports HEX/RGB/HSL formats, AA/AAA compliance testing.
Use NowLinear and radial gradient generator with 2-5 color stops, live preview, one-click CSS copy, and PNG export.
Use NowReal-time conversion among HEX, RGB, HSL, HSV, and CMYK formats. Color preview, name identification, and similar color generation. Pure frontend.
Use NowVisually configure flex-direction, justify-content, align-items and more. Live preview CSS layout, one-click CSS copy.
Use NowFree online time duration calculator. Calculate time between two times, add/subtract hours minutes seconds, convert between time units (seconds/minutes/hours/days/weeks). Supports cross-day calculation. Pure frontend, zero dependencies.
Use NowUnix timestamp to date converter, real-time clock, timezone switching, relative time, and batch conversion.
Use NowReal-time match highlighting, capture groups, replace preview, with a regex syntax cheat sheet and common patterns. Supports g/i/m/s/u/y flags.
Use NowInstantly generate common regex patterns (email, phone, URL, IP, etc.) with live testing and code output for 12 programming languages. Pure client-side processing.
Use Now100+ ready-to-use regex patterns across 13 categories: email, phone, ID, URL, IP, and more. One-click copy, live testing, and replace. Pure client-side.
Use NowOnline JWT decoding tool. Auto-decode Header and Payload, signature display, JSON syntax highlighting, expiry detection, algorithm identification (HS256/RS256 etc).
Use NowOnline JWT Token generator supporting HS256/HS384/HS512 algorithms. Edit Header and Payload, set Secret Key, verify signatures, generate random secrets. Pure browser-side processing.
Use NowSupports MD5/SHA-1/SHA-256/SHA-384/SHA-512. Text hashing, file drag-and-drop hashing, HMAC authentication, hash comparison. Pure frontend.
Use NowEstimate tokens for GPT-4/Claude/Gemini. Context window visualization, API cost estimation. Pure frontend processing.
Use NowSupports length, weight, temperature, speed, area, data storage units real-time conversion. Batch mode and quick reference tables.
Use NowLive preview, one-click HTML copy, export to HTML file, word count. Pure frontend, zero dependencies, dark theme. Data never leaves your browser.
Use NowRange settings, allow/forbid duplicates, lottery mode, batch generation, distribution statistics. Pure frontend processing.
Use NowLocal Canvas image compression. JPEG/PNG/WebP conversion, quality slider, batch processing. Images never upload to server.
Use NowCustom size, colors, and text. Real-time Canvas rendering with one-click PNG download. Essential for developers and design prototypes. Pure frontend, zero dependencies.
Use NowExtract pages by range, single page selection, odd/even separation, or every N pages. Pure frontend processing with pdf-lib.js, no server upload.
Use NowMerge multiple PDF files with drag-and-drop sorting. Pure frontend processing, no server upload. No registration required.
Use NowAdd custom text watermarks to PDFs with adjustable transparency, color, position and rotation. Pure frontend processing, no server upload.
Use NowConvert PDF pages to PNG or JPEG with customizable DPI. Supports batch export and ZIP download. Pure frontend processing, no server upload.
Use NowFree online PDF text extraction. Pure client-side processing, no server upload. Extract text from multi-page PDFs, copy or download as TXT. Privacy-safe.
Use NowHorizontal, vertical, and grid layout modes. Drag-to-reorder, spacing control, and high-resolution download. Pure front-end local processing, no data uploaded to servers.
Use NowUpload an image to generate multi-size website icons from 16×16 to 512×512. Supports PNG and ICO download with auto-generated HTML code. Pure client-side processing.
Use NowEnter a URL to generate webpage thumbnails. Supports full-page and viewport screenshots. HTML preview screenshot. Pure frontend, download PNG.
Use NowFree online CSS beautifier and minifier. Supports formatting and minification. Custom indentation, preserve comments, compression ratio stats.
Use NowFree online HTML minifier. Remove extra whitespace, comments and line breaks to reduce HTML file size and boost page load speed. Pure client-side processing.
Use NowAuto-add browser vendor prefixes (-webkit-/-moz-/-ms-/-o-) to CSS properties. Supports Flexbox, Grid, Transform and more. Pure frontend processing.
Use NowHTML entity encoding/decoding, URL encoding/decoding, Unicode conversion. Pure frontend processing.
Use Now7 case formats conversion: UPPER, lower, Title, sentence, camelCase, snake_case, kebab-case. Remove extra spaces, word count.
Use NowSupport UUID v4 and v7. Batch generation, custom format (standard/no-hyphens/uppercase). Pure frontend local generation.
Use NowVisual Cron expression editor. Supports 5/6/7-field formats, real-time execution preview, human-readable explanation. Pure frontend.
Use NowSide-by-side text comparison, difference highlighting, similarity percentage, line numbers. Pure frontend processing.
Use NowRemove empty lines, deduplicate, sort, reverse, filter, add line numbers, convert case. Supports undo history. Pure frontend processing.
Use NowFree crop, fixed ratio presets (1:1/4:3/16:9), image rotation and flip. Pure frontend Canvas processing, images never leave your device.
Use NowOnline email signature generator with 4 templates (Simple/Business/Creative/Minimal), color customization, live preview, copy HTML, export file, social links support. Pure frontend, zero dependencies.
Use NowXML beautification, minification, and syntax validation. Pure frontend processing, no data upload.
Use NowRemove SVG comments and whitespace, simplify color values, strip unused attributes. Live preview with compression ratio. Pure client-side processing.
Use NowDraw rectangles, circles, lines, and paths. Edit fill, stroke, and stroke width in real time. Export SVG code and PNG. Includes preset icon templates.
Use NowConvert between px, rem, em, vw, vh, vmin, vmax, ch, ex, pt, cm, mm, in and more. Real-time calculation, one-click copy. Essential for frontend developers.
Use NowVisually edit tables (add/remove rows/columns, merge cells). Generate Markdown code in real time. Set left/center/right alignment. CSV import/export.
Use NowSupports standard Markdown and GitHub Flavored Markdown. Real-time preview, one-click export of complete HTML files. Pure client-side processing.
Use NowCalculate date differences, add/subtract dates, count business days, compute age, and countdown to events. Pure client-side processing.
Use NowCalculate Body Mass Index with metric/imperial switching. Get BMI classification, health tips, ideal weight range, BMR basal metabolic rate, and body fat percentage estimates.
Use NowCalculate compound interest with recurring contributions. Visual growth charts, detailed yearly breakdowns. Perfect for retirement planning, education funds, and savings goals.
Use NowOnline Unicode encoder and decoder. Convert text to/from Unicode escapes, HTML entities, and UTF-8 bytes. Full Emoji support. Pure client-side processing.
Use NowCalculate aspect ratios from width and height, reverse-calculate dimensions from ratios, with built-in presets for video, image, and screen ratios. Pure client-side processing.
Use NowFree online mind map tool with drag-and-drop nodes, multi-level hierarchy, export to PNG and JSON. Runs entirely in the browser with no server uploads.
Use NowQuickly calculate gratuity amounts for restaurants, taxis, hotels, and more. Supports custom tip rates, bill splitting, and round-up options. Pure frontend, no data sent to servers.
Use NowVisual CSS transform editor (rotate, scale, skew, translate) with real-time preview, 2D and 3D support, one-click copy CSS code.
Use NowVisual CSS custom properties creator, manage design tokens for colors, sizes, fonts. Export :root code instantly with 8 theme presets.
Use NowReverse text by characters, words, or lines. Full Unicode support (CJK, Emoji). Pure front-end processing, no data uploaded.
Use NowVisual table editing with header rows, zebra striping, border styles. Export clean HTML code instantly. Pure front-end, no server upload.
Use NowFree online typing speed test with real-time WPM and accuracy tracking. Supports English and Chinese practice, local history. Pure front-end, zero dependencies.
Use NowFree text-to-speech tool with multi-language voice synthesis, adjustable speed, pitch and volume. Pure front-end local processing. Perfect for article reading, language learning, and accessibility.
Use NowFree online speech-to-text tool with real-time voice recognition. Convert microphone audio to text. Supports 15 languages including Chinese, English, Japanese, and Korean. One-click TXT export. Pure front-end local processing.
Use NowFree online timezone converter supporting 200+ cities worldwide. Real-time time difference calculation with automatic DST detection and live world clock. Pure front-end local processing.
Use NowFree online screen recorder with no installation required. Record screen, window, or browser tab with optional system audio and microphone. One-click WebM download. Pure front-end local processing.
Use NowGenerate search-engine-compliant XML Sitemap files instantly. Batch URL management, priority settings, and changefreq configuration. Pure front-end local processing. SEO essential tool.
Use NowDraw items randomly from a list. Supports raffles, lucky draws, random grouping, coin flip, and dice roll with animation effects. Pure front-end local processing.
Use NowApply grayscale, sepia, blur, brightness, contrast, saturation, hue, and invert filters. One-click beautify images. Pure front-end local processing.
Use NowPreview images in 8 color vision deficiency modes. Supports comparison mode and download. Essential for accessibility testing.
Use NowExact age in years, months, days. Supports zodiac, Chinese zodiac, and total life days. Pure frontend.
Use NowCode128, EAN-13, UPC-A, CODE39 and more. Custom size and colors. Pure frontend local generation.
Use Now7 color scheme modes, extract colors from images, export CSS/Sass/JSON. Pure frontend.
Use NowCustom duration, Pomodoro mode, preset timers, sound alerts, full-screen. Pure frontend.
Use Now40+ preset animations, live preview, customizable parameters and code generation. Pure frontend.
Use NowPreset breakpoints, custom media features and logic combos. Generate standard @media code instantly. Pure frontend.
Use NowVisual border-radius slider, real-time preview, circle/ellipse/capsule presets. Pure frontend.
Use NowConvert compressed CSS to readable code. Custom indent, selector sort, property sort, keep comments.
Use NowVisual grid-template-columns/rows and gap config, live preview. Pure frontend.
Use Now8 types of pure CSS loading spinners. Custom color, size, speed. One-click copy.
Use NowVisual box-shadow design. Multiple shadows, inset, live preview, one-click copy.
Use NowVisually generate pure CSS triangles. 8 directions, 3 style modes, live preview, one-click copy.
Use NowBidirectional CSV↔JSON conversion, custom delimiters, nested objects, drag-and-drop. Pure frontend.
Use Now160+ currencies with real-time calculation. Built-in rates for USD, EUR, CNY, JPY and more.
Use NowBrush, line, rectangle, circle, eraser tools. Undo/redo, export PNG. Pure frontend.
Use NowCompute MD5, SHA1, SHA256, SHA512 file checksums locally in browser. Drag-and-drop, batch processing, hash comparison. No uploads.
Use NowConvert B/KB/MB/GB/TB/PB with binary (1024) and decimal (1000) modes. Pure frontend.
Use NowConvert special chars, Emoji, CJK to HTML entities and back. Pure frontend.
Use NowFormat and beautify HTML. Custom indent, attribute wrapping, self-closing tags. Pure frontend.
Use NowConvert HTML to React JSX with automatic className and style object conversion. Pure frontend.
Use NowConvert HTML tables, lists, images, links, code blocks to Markdown. Pure frontend.
Use NowGET/POST/PUT/DELETE/PATCH, custom headers and body, real-time response viewer. Pure frontend.
Use NowComplete 1xx-5xx reference with search, explanations, common causes, and solutions. Pure frontend.
Use NowPNG/JPG/WebP/BMP/GIF conversion, batch processing, quality control, resize. Pure frontend.
Use Now2x2, 3x3, 1x3, 3x1 grid splitting. Perfect for social media multi-image posts. Pure frontend.
Use NowExtract dominant colors from images, generate palettes in HEX/RGB. One-click copy. Pure frontend.
Use NowCustomizable pixel block size, live preview. Ideal for privacy protection and pixel art. Pure frontend.
Use NowResize by pixels or percentage, keep aspect ratio, JPG/PNG/WebP output, batch mode. Pure frontend.
Use NowRotate 90°/180°/270°, flip H/V, custom angle. Pure frontend, JPG/PNG/WebP support.
Use NowConvert color photos to B&W. Multiple algorithms, adjustable intensity. Pure frontend.
Use NowBatch convert images to PDF with custom page size, orientation, margins. Pure frontend.
Use NowConvert images to ASCII character art. Adjustable width, density, invert, and color mode.
Use NowFormat and beautify or minify JavaScript. Custom indent, keep comments, unify quotes. Pure frontend.
Use NowRemove comments, whitespace, newlines. Real-time compression ratio and size comparison. Pure frontend.
Use NowDeep compare two JSON files with tree-view of added, removed, and modified differences. Pure frontend.
Use NowGenerate random test data: names, emails, addresses, companies. One-click export. Pure frontend.
Use NowConvert JSON arrays to CSV and CSV to JSON. Custom delimiters, live preview. Pure frontend.
Use NowReal-time syntax error detection with line/column pinpointing. Format and compress. Pure frontend.
Use NowBidirectional JSON↔YAML conversion, formatting, error detection. For Docker Compose, K8s. Pure frontend.
Use NowNKRO testing, key code inspection, combo key testing. Real-time event details. Pure frontend.
Use NowSort alphabetically, numerically, by length. Shuffle, deduplicate, remove blanks. Pure frontend.
Use NowFixed payment and fixed principal methods. Amortization schedule, total interest. Pure frontend.
Use NowGenerate placeholder text by paragraphs, sentences, or words. One-click copy. Pure frontend.
Use NowText↔Morse bidirectional conversion with audio playback and flash demo. Pure frontend.
Use NowBinary/octal/decimal/hex and custom bases (2-36). Big integer support, ASCII preview. Pure frontend.
Use NowReal-time security analysis, brute-force time estimate, weak pattern detection. Pure frontend.
Use NowBatch compress PDFs with adjustable quality. Live preview of compression results. Pure frontend.
Use Now7 modes: percentage of, reverse, discount, tip, increase, decrease, change. Pure frontend.
Use NowCalculate sale price, reverse discount rate, bulk discount summary, and tax-inclusive pricing. Essential shopping tool.
Use NowFocus, short break, long break modes. Task management and statistics. Pure frontend.
Use NowText, URL, WiFi, email, phone types. Custom colors, size, error correction level. Pure frontend.
Use NowEstimate article reading time. Chinese/English mixed text, slow/medium/fast speeds. Pure frontend.
Use NowTrig, log, power, factorial, constants π/e. Keyboard input, history. Pure frontend.
Use NowCalculate screen PPI pixel density, check Retina standard, viewing distance recommendations and device references
Use NowMySQL, PostgreSQL, SQLite, SQL Server, Oracle dialects. Auto syntax highlight, smart indent. Pure frontend.
Use NowReal-time char/word/line/paragraph count, reading time, word frequency and density. Pure frontend.
Use NowAES, Base64, URL encoding, ROT13, MD5/SHA256 hash algorithms. Pure frontend.
Use NowDeduplicate by line or word, case-sensitive toggle, remove blank lines. Pure frontend.
Use NowAutomatically extract URLs, emails, IPs, phone numbers, dates, hashtags & @mentions from text. Pure client-side processing.
Use NowMulti-rule find & replace, regex support, batch processing, case sensitivity. Pure frontend.
Use NowLevenshtein, Jaccard, cosine similarity, LCS algorithms. Pure frontend processing.
Use NowCustom fonts, colors, backgrounds, shadows. Live preview, PNG export. Pure frontend.
Use NowReal-time Chinese/English word count, character count, sentences, reading time. Pure frontend.
Use NowInstantly calculate selector priority scores. Supports ID, class, tag, pseudo-class & pseudo-element parsing with comparison.
Use NowGenerate title, description, keywords, Open Graph, and Twitter Card tags with live Google search and social share previews.
Use NowGenerate a WiFi QR code from your network name and password. Scan to connect instantly without typing. Supports WPA/WPA2/WEP, runs entirely in your browser.
Use NowStrip GPS location, camera model, timestamps and other private metadata from photos in one click. Supports lossless and fast modes, batch processing, pure client-side.
Use NowBefore/After slider comparison with horizontal and vertical modes. Drag the slider to view differences in real time. Pure client-side processing, no data upload.
Use NowProfessional invoice and receipt maker with custom company info, client details, itemized billing, tax calculation, and one-click print to PDF. Pure client-side processing.
Use NowOnline User-Agent string parser that instantly identifies browser, OS, device type, and rendering engine. Supports manual input, pure client-side processing.
Use NowFree online YAML formatter and validator with syntax highlighting, error detection, formatting, and JSON conversion. Pure client-side processing, supports Kubernetes/Docker/CI configs.
Use NowAdd text or image watermarks to photos with customizable position, size, transparency, and rotation. Batch processing, pure client-side local handling, no server uploads.
Use NowFree online .gitignore file generator for 50+ languages, frameworks, and IDEs. Select templates with one click and generate professional .gitignore files. Pure frontend, no server upload, one-click copy and download.
Use NowFree online social media image size guide covering Instagram, Facebook, Twitter/X, LinkedIn, TikTok, YouTube, and 16+ platforms. One-click lookup for profile, cover, post, story, and ad dimensions. Pure frontend.
Use NowFree online number to words converter. Convert numbers to English words for checks, invoices, contracts and financial documents. Supports up to 999 billion. Pure frontend, no data upload, one-click copy.
Use NowFree online CSS neon text effect generator. Create glowing neon text with customizable colors, glow size, text stroke, and animations (flicker, pulse, blink). One-click copy CSS code. Pure frontend, no data upload.
Use NowOnline Tools Privacy Policy - Learn how we collect, use, and protect your personal information.
Use NowOnline Tools Terms of Service - Learn about the terms and conditions for using our services.
Use NowFree online emoji picker with category browsing, keyword search, and one-click copy. Includes all Unicode emojis. Pure frontend, no signup required.
Use NowFree online code sandbox supporting HTML, CSS, JavaScript live preview. Pure frontend processing, no data upload, works offline. Perfect for frontend learning and rapid prototyping.
Use NowFree online image flipper and mirror tool. Flip images horizontally, vertically, or both ways. Real-time preview with one-click download in PNG/JPEG/WebP. Pure frontend Canvas processing, zero data uploads.
Use NowFree online signature maker. Draw your signature with mouse or finger on canvas. Multiple pen colors, adjustable brush size, transparent background PNG export. Perfect for contracts, PDF signing, and email signatures.
Use NowFree online image to pencil sketch converter. Turn your photos into realistic pencil drawings instantly. Adjustable sketch intensity, real-time preview, high-resolution export. Pure frontend Canvas processing — no server uploads.
Use NowFree online spin the wheel random picker. Customize options and colors, spin to randomly pick a winner. Add/edit/remove options, spinning animation, random result. Pure frontend, no server uploads. For giveaways, classrooms, team decisions.
Use NowFree online Cookie editor, browser cookie viewer/editor/manager. Add, edit, delete cookies, parse Set-Cookie and Cookie strings, export/import cookie JSON, copy JavaScript/Set-Cookie/Cookie Header code. Pure frontend, no server uploads. Perfect for web developers.
Use NowFree online CSS Font Generator. Visualize and generate CSS font styles in real-time — font-family, size, weight, line-height, letter-spacing, color, decoration and more. Built-in Google Fonts library. One-click CSS copy. For web designers and frontend developers.
Use NowFree online text to handwriting converter. Turn your typed text into realistic handwritten-style images. Choose paper style (lined/grid/blank), ink color, font size, tilt angle and writing pressure. Download as PNG. Pure frontend, privacy-safe.
Use NowFree online fancy text generator. Convert plain text into 15+ Unicode font styles — bold, italic, gothic, script, double-struck, monospace and more. One-click copy for Instagram, Twitter, WhatsApp. Pure frontend, privacy-safe.
Use NowFree online audio recorder. Record microphone audio directly in your browser. Supports pause/resume, real-time waveform visualization, playback, and download as WAV/WebM. Pure frontend local processing with no server uploads for privacy.
Use NowFree online white noise generator with 6 noise types: white, pink, brown, blue, violet, and grey noise. Perfect for focus, sleep, meditation, and tinnitus relief. Features sleep timer, scene presets, and real-time spectrum visualization. Pure frontend Web Audio API, no install needed.
Use NowFree online CSS text stroke generator. Create beautiful text outline effects with customizable stroke width, color, fill color, and shadow. Features 6 preset styles including bold stroke, neon glow, outline-only, and double stroke. One-click CSS code copy. Pure frontend, no data upload.
Use NowFree online text repeater. Repeat any text 1-10,000 times with customizable separators (newline, comma, space, tab, or custom). Add numbering, prefixes, and suffixes to each repetition. Perfect for generating test data, placeholder content, and formatted lists. Supports one-click copy and TXT download.
Use NowFree online text to emoji converter. Automatically replace English words with corresponding emoji symbols. Supports random emoji mode, batch conversion. Pure frontend, no data upload.
Use NowFree online MAC address generator. Supports random generation, batch generation, and OUI vendor prefix selection. Customizable separator format. Supports common virtualization platform OUIs. Pure frontend, no data upload.
Use NowFree online CSS 3D perspective transform generator. Visually adjust perspective, rotateX/Y/Z, translateZ parameters. Real-time 3D preview, built-in presets (card flip, top view, etc.), one-click CSS code copy. Pure frontend.
Use NowFree online CSS blend mode generator. Visually adjust background-blend-mode and mix-blend-mode parameters. Supports 16 blend modes, real-time preview, one-click CSS code copy. Pure frontend.
Use NowFree online CSS multi-column layout generator. Visually adjust column-count, column-width, column-gap, column-rule. Built-in presets (newspaper 3-col, magazine 2-col), real-time preview, one-click CSS code copy. Pure frontend.
Use NowFree online emoji text style generator. Convert plain text to fancy emoji-styled text with 30+ decorative styles. One-click copy. Great for social media nicknames, signatures, chat decoration. Pure frontend.
Use NowFree online robots.txt validator. Check syntax, detect common errors and SEO issues. Quality scoring, detailed error messages, fix suggestions. Built-in good/bad examples. Pure frontend.
Use NowFree online HTML tag stripper. Remove HTML tags, extract plain text content. Supports preserving line breaks, collapsing whitespace, decoding HTML entities, removing script/style tags. Tag count and character stats. Pure frontend.
Use NowFree online CSS scroll snap generator. Customize scroll snapping direction, alignment, gap and stop points. Supports horizontal and vertical scroll-snap-type. Live preview scroll effects. Copy CSS instantly. Pure frontend.
Use NowFree online CSS drop cap generator. Customize initial letter with lines, font, color, margin and background styles. Live preview typography effect. Copy CSS instantly. Pure frontend.
Use NowFree online CSS link style generator. Customize link states (:link/:visited/:hover/:active) with colors, decoration, bold, background. Live preview interactive effects. Copy CSS instantly. Pure frontend.
Use NowFree online CSS ::selection color generator. Customize selected text background and text color. Supports global and element-specific selectors. Live preview highlighting effect. Copy CSS instantly. Pure frontend.
Use NowFree online CSS list style generator. Customize ordered/unordered list markers with type, color, size and position. Supports list-style-type, list-style-position and ::marker pseudo-element. Live preview. Copy CSS instantly. Pure frontend.
Use NowFree online CSS aspect-ratio generator. Visually create aspect-ratio code with presets like 16:9, 4:3, 1:1. Live preview and one-click CSS copy. Pure frontend, local processing.
Use NowFree online CSS mask-image generator. Supports gradient masks and image masks with live preview. Visual adjustment of mask parameters. One-click CSS copy. Pure frontend.
Use NowFree online SVG to PNG converter. Convert SVG vector code to PNG images with custom size, background color, and transparency. Live preview. Pure frontend Canvas processing, no data upload.
Use NowFree online Word Cloud Generator. Paste text to automatically generate beautiful word cloud images. High-frequency words appear larger. Customizable word count. Download as PNG. Pure frontend.
Use NowFree online PDF to Word converter. Extract text from PDF files and save as Word documents. Uses PDF.js for parsing. All processing is local, files never uploaded. Privacy safe.
Use NowFree online RSA key pair generator. Generate 1024/2048/4096-bit RSA public and private keys using Web Crypto API. Export in PEM format, one-click copy, file download. Client-side only, keys never leave your browser.
Use NowFree online AES encryption and decryption tool using AES-256-GCM. Encrypt text with password, Base64 output. Client-side processing, data never uploaded. Perfect for secure messaging and configuration encryption.
Use NowFree online Schema markup generator. Visually create JSON-LD structured data for Article, Product, Organization, FAQ, LocalBusiness, BreadcrumbList. Boost SEO with rich snippets. Client-side only.
Use NowFree online image blur tool. Apply Gaussian blur with adjustable radius. Real-time preview, before/after comparison, download HD images. Client-side processing, no upload. Perfect for privacy protection and background blur.
Use NowFree online image sharpening tool. Enhance clarity using convolution kernel algorithm. Adjustable intensity, real-time preview, download HD images. Client-side processing. Fix blurry photos and enhance details.
Use NowFree online HTML button generator. Visually design button styles with custom text, colors, size, border radius, shadow, fonts. Real-time preview, one-click copy HTML+CSS code. No coding needed.
Use NowFree online animated gradient background generator. Create stunning CSS animated gradients with custom colors, angle, speed. Real-time preview, one-click copy CSS. Perfect for website backgrounds, landing pages.
Use NowFree online text summarizer. Extract key sentences from any text using extractive summarization. Adjust summary length, highlight key points, copy results instantly. Pure frontend processing, no data upload. Ideal for research articles, news, documents.
Use NowFree APA citation generator. Create APA 7th edition citations for books, websites, journal articles, and more. Generate in-text citations and reference lists. Client-side only. Perfect for academic writing and research papers.
Use NowFree online grammar checker. Check English writing for grammar errors, punctuation mistakes, spelling issues, and style suggestions. Detects subject-verb agreement, article usage, comma splices, double negatives, confused words. All processing is local.
Use NowFree paraphrasing tool to rewrite any text with synonyms and adjusted sentence structures. Choose from Standard, Formal, Simplify, or Creative modes. Improve writing, find new expressions. Client-side only, no data upload.
Use NowFree online content improvement tool. Improve writing with readability analysis, passive voice detection, and vocabulary suggestions. Analyze long sentences, hard words, and readability scores. Client-side only.
Use NowFree online professional bio generator. Create bios from your name, profession, and skills. Multiple length options for social media, personal websites, and business cards. Pure frontend.
Use NowFree online slogan generator for catchy business slogans and taglines. Hundreds of pattern combinations from keywords. Perfect for brands, products, and marketing campaigns. Pure frontend.
Use NowFree online headline generator for articles, blogs, and content marketing. Multiple formats with power words and SEO optimization. Professional, creative, urgent, and curiosity-driven styles. Pure frontend.
Use NowFree online meta description generator for SEO-optimized snippets. Analyzes content and generates compelling descriptions with ideal length. Length checking and suggestions included. Pure frontend.
Use NowFree online essay outline generator for structured academic writing outlines. Supports persuasive, expository, narrative and more types. Multiple detail levels. Perfect writing framework. Pure frontend.
Use NowFree random name generator for characters, usernames, businesses, fantasy worlds. Choose from Fantasy, Modern, Strong, Cute, Funny, Business, Gamer, Nature styles. Set gender and name format. Click any name to copy. Perfect for writers and gamers.
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Use NowFree online Pearson correlation coefficient calculator. Compute r value with scatter plot and trend line. Statistical analysis tool, pure frontend.
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Use NowFree online GIF to video converter. Convert animated GIFs to MP4 or WEBM video format. Supports quality selection, frame rate control, loop playback. 100% browser-based, no uploads.
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Use Tool免费在线颜色提取器，从图片中提取主色调和调色板。支持Upload Image、自动分析主要颜色、HEX和RGB格式输出。纯前端Canvas处理，图片不上传服务器。
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Use ToolFree online CSS container query (@container) generator with visual container-type, container-name, and size condition configuration. Real-time responsive lay...
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Use ToolFree online HSL to RGB color converter. Convert HSL(h, s%, l%) to RGB(r, g, b) with real-time color preview. Copy CSS-ready code. Client-side processing, no signup required.
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Use ToolFree online HTML entity encoder and decoder. Convert special characters to & and other HTML entities, or decode them back. Pure frontend, zero uploads, supports batch conversion and common ent
Use ToolFree online HTML entity converter. Encode special characters to HTML entities or decode entities back to original characters. Supports named entities, decimal and hex numeric entities. Pure frontend,
Use ToolFree online HTML entity decoder. Convert HTML entities (<, &) back to original characters. Supports named and numeric entities. Client-side only.
Use ToolFree online 免费在线HTML Entity Decoding器，支持解码<>&"等HTML实体字符。支持命名实体和数字实体（十进制/十六进制）。纯前端实现，无需注册。
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Use ToolFree online image compressor supporting JPEG, PNG, and WebP formats. Pure client-side processing—no uploads to any server. Adjustable quality, live preview, one-click download, and batch processing.
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Use ToolFree online image to oil painting converter. Transform photos into hand-painted oil painting style artwork using a unique algorithm. Adjustable brush size and detail level for different painting style
Use ToolFree online image color palette extractor. Upload any image to extract its dominant colors and generate a color palette. Pure client-side processing, no data uploaded to server. Supports HEX and RGB f
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Use ToolFree online image pixelation tool. Upload images and apply pixelation with customizable block size, real-time preview, and instant download. All processing happens locally in your browser with no serv
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Use ToolFree online Image to ASCII Art converter. Upload any image and convert it to ASCII character art with adjustable width, character density, and color mode. Pure frontend, zero upload.
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Use ToolFree terms of Service of Online Tools Matrix - Understand the terms and conditions for using our services.
Use ToolFree online text analysis tool. Analyze word frequency, character count, sentence count, paragraph count, reading time estimation, keyword extraction. Client-side processing, no signup required.
Use ToolFree online text analyzer with real-time character count, word count, line count, paragraph count, reading time estimation, word frequency analysis and keyword density detection. Pure frontend, zero d
Use ToolFree online text animation generator. Create stunning CSS text effects visually. Supports typewriter, neon glow, gradient flow, wave bounce, 3D rotation, flicker, and more animation styles. Live previ
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Use ToolFree online text encrypt and decrypt tool supporting AES, Base64, URL encoding, ROT13, MD5/SHA256 hashing. Pure frontend processing, data never leaves your browser.
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Use ToolFree online text to SVG converter. Transform text into scalable vector graphics. Customize font, color, size, and alignment. Perfect for logos, titles, and icons. Pure client-side processing.
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Use ToolFree online 免费在线Time Zone Conversion器，支持全球400+时区的实时转换。输入时间自动转换为Target Time Zone，支持UTC偏移和城市名称搜索。纯前端实现，无需注册。
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Use ToolFree online timeline maker. Create beautiful visual timelines with custom events, dates, descriptions, and color markers. Perfect for project planning, historical timelines, and personal milestones.
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Use ToolFree online Title Case converter. Automatically convert your titles to AP, APA, Chicago, or MLA title case format. Perfect for writers, researchers, and students. Real-time preview, one-click copy. Pu
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Use ToolFree online Token counter for GPT-4/GPT-4o/GPT-3.5/Claude/Gemini. Estimate token usage, visualize context window with progress bars, and calculate API costs. Pure frontend, data never uploaded.
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Use ToolFree online audio tone/frequency generator. 20Hz-20kHz sine/square/sawtooth/triangle waves. Adjustable frequency, volume, channel. Web Audio API, no install.
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Use ToolFree online Truth or Dare game generator. Perfect for parties, sleepovers, and gatherings with friends. Choose from multiple categories including fun, spicy, and family-friendly modes.
Use ToolFree online tsconfig.json generator. Visually configure TypeScript compiler options: target, module, strict mode, JSX, paths, and more. Pure frontend, zero dependencies.
Use ToolFree online TSV to JSON converter. Transform tab-separated tabular data into JSON format. Supports custom delimiters, first row as keys, nested structures. Pure frontend, no server upload. Perfect for
Use ToolFree online Twitter Card generator. Create Twitter share preview cards. Supports Summary and Large Image cards. Visual editor with live preview. One-click meta tag copy.
Use ToolFree online TypeScript/TSX code formatter. Client-side processing, no server upload. Custom indent, semicolons, quote style, one-click copy, syntax highlighting.
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Use ToolFree online 免费在线ULID Generation器，生成全球唯一可排序ID。ULID比UUID更短、可排序、URL友好。支持批量生成、多种格式输出。纯前端实现，无需注册。
Use ToolFree online Unicode encoder and decoder. Convert text to/from Unicode escape sequences, HTML entities, and UTF-8 bytes. Pure client-side processing, no data sent to servers.
Use ToolFree online unit converter supporting real-time conversion of common units including length, weight, temperature, speed, area, and data storage. Batch conversion mode and quick reference tables includ
Use ToolFree online unit price calculator. Calculate price per gram, per liter, per item for shopping comparison. Compare multiple products. Client-side only.
Use ToolFree online 免费在线UnixTimestamp Conversion器，实时转换Unix时间戳和人类可读日期时间。支持秒级和毫Seconds Timestamp，显示UTC时间、Local Time和Relative Time。纯前端实现。
Use ToolFree online upside down text generator. Flip text 180° to create upside down text. One-click copy. Client-side.
Use ToolFree online URL Builder & Query String Generator. Visually build URLs with query parameters. Add, edit, and delete URL parameters with auto URL encoding. Copy URL with one click. Perfect for UTM track
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Use ToolFree online URL and Email extractor tool. Extract all URLs, email addresses, and phone numbers from text. Batch extraction, one-click copy, download results. 100% client-side.
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Use ToolFree online URL shortener. Convert long URLs into short, shareable links. Support custom short codes, one-click copy, and QR code generation. Client-side processing, no signup. Perfect for social medi
Use ToolFree online URL validation tool to check URL format validity, parse URL components (protocol, domain, path, query parameters, etc.), support batch validation. Pure frontend, no network requests sent.
Use ToolFree online User-Agent generator. Generate random UA strings for Chrome, Firefox, Safari, Edge, mobile devices, and bots. One-click copy for developers.
Use ToolFree online User-Agent parser. Instantly identify browser, OS, device type, and rendering engine. Pure client-side processing with full privacy. Supports manual UA string analysis.
Use ToolFree online username generator for cool, cute, professional, funny, and gamer styles. Add numbers/symbols, one-click copy. Perfect for gaming and social media.
Use ToolFree online UUID generator supporting UUID v4 random generation, UUID v1 timestamp generation, bulk generation, and custom formats. Pure frontend, no data uploaded.
Use ToolFree online VAT calculator. Calculate tax-inclusive and tax-exclusive prices with preset rates for China, US, EU, Japan and more. Pure frontend, no data sent to servers.
Use ToolFree online vCard generator. Create electronic business card VCF files. Supports multiple contact fields. Import into phone contacts and email clients. Client-side processing, data stays private.
Use ToolFree online video compressor. Compress video files locally in your browser. Supports MP4/WebM, adjustable quality and resolution. No upload to servers, privacy protected.
Use ToolFree online video frame grabber. Extract still frames from video files. Frame-by-frame navigation, batch capture, download as PNG/JPEG. Client-side, no upload.
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Use ToolFree online Video to GIF converter. Convert MP4, WebM, AVI, MOV to animated GIF. Trim start/end time, adjust FPS, resize, and control quality. Pure frontend, 100% local processing, no upload required.
Use ToolFree online Vigenere Cipher encryption and decryption tool. A polyalphabetic substitution cipher using a keyword, more secure than the Caesar Cipher. Supports custom keywords, preserving spaces and pu
Use ToolFree online vision test with standard Snellen chart and Tumbling E chart. Supports different testing distances and adjustable chart sizes. Perfect for daily eye check and vision screening.
Use ToolFree online volume calculator supporting sphere, cube, cuboid, cylinder, cone, frustum, and prism shapes. Multiple units, client-side only, privacy safe.
Use ToolFree online volume unit converter supporting liters, milliliters, gallons, fluid ounces, cups, pints, quarts, barrels, cubic meters and more. Pure frontend conversion, no data uploaded.
Use ToolFree online daily water intake calculator. Calculate recommended water consumption based on weight, exercise, climate, and other factors. Client-side only, supports multiple units.
Use ToolFree online SVG wave generator. Create beautiful multi-layer wave graphics with custom colors, amplitude, and frequency. One-click copy SVG code. Pure frontend local generation.
Use ToolFree online wavy text generator. Create text wave/bounce animation effects. Multiple wave types, customizable colors and amplitude, one-click export CSS code.
Use ToolFree online webpage screenshot tool. Enter a URL to generate webpage thumbnails. Supports full-page and viewport screenshots. Pure frontend, data never leaves your browser.
Use ToolFree online webcam test tool. Test your camera in one click. Check resolution, frame rate, brightness, contrast. Pure frontend, no uploads, privacy safe.
Use ToolFree online WebP converter — convert between WebP, PNG, JPEG, and GIF. Drag & drop, batch conversion, pure client-side Canvas processing. No uploads, your images stay private.
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Use NowFree online weekly planner. Organize your week with daily tasks, time slots, and completion tracking. Auto-saves locally. Perfect for time management.
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Use NowFree online acronym generator and expander. Two modes: generate acronyms from phrases (e.g., World Health Organization → WHO), and expand acronyms to find possible meanings. Perfect for naming projects, brand naming, exam prep, and everyday writing. Client-side only.
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Use NowFree online CSS animated background generator. Create stunning animated gradient backgrounds, particle backgrounds, and wave animations. Multiple animation styles (gradient flow, floating particles, wave motion, neon glow). Live preview. One-click copy CSS code for your website, landing page, or portfolio.
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Use NowFree online image tint effect tool. Apply color filter/tint effects with presets...
Use NowFree online Base64 decoder. Decode Base64 encoded strings back to original text or image data. Supports text decoding and image decoding with auto-detection. Perfect for development debugging and data analysis.
Use NowFree online CSS drop shadow filter generator. Visually create filter: drop-shadow() effects with customizable offset, blur, and color. Unlike box-shadow, it follows element contours. Real-time preview, one-click copy CSS. Client-side only.
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Free online HLS stream player. Play m3u8 video streams directly in browser. S...
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Free online image merge tool that combines two images into one. Supports hori...
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