🔧 Free Online Utility Tools 815 tools

🔧 Time Calculator Free online time calculator. Add/subtract time, calculate duration between times, time unit conversion. Client-side o... 🔧 Work Hours Calculator Free online work hours calculator. Track work hours, overtime, and weekly totals. Daily and weekly views, standard ho... 🔧 Battery Status Checker Free online battery status checker. View device battery level, charging status, and estimated remaining time. Client-... 🔧 Morse Code Player Free online Morse code player. Convert text to Morse code audio. Adjustable speed and tone, visual sync display. Clie... 🔧 ️ Video Frame Grabber Free online video frame grabber. Extract still frames from video files. Frame-by-frame navigation, batch capture, dow... 🔧 Carbon Footprint Calculator Free online carbon footprint calculator. Estimate your annual CO2 emissions from travel, energy, diet, and lifestyle.... 🔧 Unit Price Calculator Free online unit price calculator. Calculate price per gram, per liter, per item for shopping comparison. Compare mul... 🔧 Reading Speed Test Free online reading speed test. Measure your WPM (words per minute) reading speed and comprehension. Multiple difficu... 🔧 Audio Waveform Visualizer Free 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% cli 🔧 Batch Image Watermark Free 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% c 🔧 File to Base64 Converter Free 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. 🔧 ️ Click Speed Test Free online click speed test (CPS test). Measure clicks per second with 5s, 10s, 30s, 60s modes. Real-time stats, hig... 🔧 Emoji Translator · Emoji Dictionary Free online emoji translator. Convert text to emoji, look up emoji meanings, browse 3000+ emoji dictionary. 100% private, client-side only. 🔧 Digital Clock · Full Screen Free 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. 🔧 Sleep Cycle Calculator Free sleep cycle calculator based on 90-minute sleep cycles. Find optimal bedtime or wake-up time with smart alarm and sleep tips. 🔧 Deposit Interest Calculator Free deposit interest calculator for fixed deposits and installment savings. Calculate maturity amount. 🔧 Electricity Cost Calculator Free electricity cost calculator. Calculate daily/monthly/yearly costs based on appliance power and usage. 🔧 GPA Calculator Free online GPA calculator supporting 4.0 scale, 5.0 scale, and percentage conversion. 🔧 Fuel Cost Calculator Free fuel cost calculator. Enter distance, fuel consumption, and price to estimate trip cost. 🔧 Investment Calculator Free investment calculator for compound interest and SIP. Calculate final returns. 🔧 Final Exam Calculator Free final exam calculator. Calculate what score you need on your final exam. 🔧 Shipping Cost Calculator Free shipping cost calculator. Estimate delivery costs based on package weight and distance. 🔧 Online Clock Free online clock with analog and digital modes. View time across 20 world time zones. Display major world cities' current time. Real-time, pure frontend. 🔧 Video to GIF Converter Free 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 processin 🔧 Dice Roller Simulator Free 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/l 🔧 Decimal to Fraction Calculator Free 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 🔧 China Tax Calculator 2026 Free 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 🔧 Online ASCII Table Lookup Tool Free online ASCII table lookup tool. Supports decimal, hexadecimal, octal, and binary cross-reference. Filter by cate... 🔧 Business Day Calculator Free online business day calculator. Quickly count working days between two dates with custom holidays and weekend se... 🔧 Calorie Calculator Free online calorie calculator. Calculate your BMR (Basal Metabolic Rate) and TDEE (Total Daily Energy Expenditure). ... 🔧 Online Credit Card Number Generator Free online credit card number generator. Generate valid test card numbers using the Luhn algorithm. Supports Visa, M... 🔧 Online Credit Card Validator Free online credit card number validator with Luhn algorithm verification. Supports Visa, Mastercard, UnionPay, Amex ... 🔧 Download Time Calculator Free online download time calculator. Enter file size and network bandwidth to instantly estimate download duration. ... 🔧 Fake Data Generator Free online fake data generator. Generate realistic test data instantly: names, emails, phone numbers, addresses, cre... 🔧 Online File Type Detector Free online file type detector that identifies file formats via Magic Bytes signatures. Supports 50+ file types inclu... 🔧 Online Grade Calculator Free online grade calculator supporting weighted average and GPA calculation. Compatible with 4.0-scale, 5.0-scale an... 🔧 Online Metronome Free online metronome with 40-280 BPM range, multiple time signatures and sound options. Runs entirely in browser wit... 🔧 ️ Online Mouse Tester Free online mouse tester with button detection, scroll wheel test, movement trail visualization, and double-click spe... 🔧 Free Text Readability Analyzer Free online text readability analyzer supporting Flesch, Flesch-Kincaid, SMOG, Coleman-Liau, Gunning Fog, and ARI sco... 🔧 Robots.txt Generator Online free Robots.txt Generator. Visually build and generate your website's robots.txt file. Supports User-agent, Al... 🔧 Online Slug Generator Free online slug generator that converts text into URL-friendly strings. Supports custom separators, batch processing... 🔧 Online Text Cleaner Free online text cleaner tool. Remove extra spaces, line breaks, tabs, and invisible characters. Normalize text forma... 🔧 Online Text Entity Extractor Free online text entity extractor. Instantly extract URLs, emails, phone numbers, IP addresses, IDs, dates, and bank ... 🔧 ️ Online Text Splitter Free online text splitting tool. Split text by character count, line count, delimiter, or regex. Pure front-end proce... 🔧 Online Text to Table Converter Free online text to table converter. Supports CSV, TSV, space-separated text. Auto-detects delimiters, converts to ed... 🔧 World Clock Free online world clock showing real-time across major global cities. Features analog clock faces, digital display, t... 🔧 VAT Calculator Free 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. 🔧 YouTube Thumbnail Downloader Enter a YouTube video URL to get HD cover thumbnails in multiple resolutions including maxresdefault and hqdefault. One-click download. Pure frontend local processing 🔧 Password Generator Cryptographically secure random password generation. Supports WiFi/Banking/API Key presets, real-time entropy check, and bulk generation. 🔧 QR Code Generator Generate QR codes locally. Supports custom colors, size adjustment, logo embedding, bulk generation, and PNG/SVG download. 🔧 Timer & Stopwatch Free online countdown timer and stopwatch. Sound alerts, fullscreen mode, keyboard shortcuts, lap records. Perfect for work, study, fitness, and cooking. 🔧 Online Stopwatch Millisecond-precision stopwatch with lap recording, statistics, and keyboard shortcuts. Great for sports training, productivity testing, and cooking. 🔧 Roman Numeral Converter Convert 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. 🔧 IP Address Lookup Free online IP lookup. Check your own IP or any IP. Shows country, city, ISP, coordinates. Full IPv4 and IPv6 support. 🔧 Screen Color Picker Pick colors from anywhere on your screen via the EyeDropper API. Supports HEX/RGB/HSL/HSV/CMYK formats, contrast check, similar colors, and history. 🔧 Color Picker HEX/RGB/HSL/HSV/CMYK converter, palette generator, WCAG contrast checker, and gradient generator. 🔧 Color Contrast Checker Real-time WCAG contrast ratio calculation, supports HEX/RGB/HSL formats, AA/AAA compliance testing. 🔧 Gradient Generator Linear and radial gradient generator with 2-5 color stops, live preview, one-click CSS copy, and PNG export. 🔧 Color Format Converter Real-time conversion among HEX, RGB, HSL, HSV, and CMYK formats. Color preview, name identification, and similar color generation. Pure frontend. 🔧 Time Duration Calculator Free 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 calculatio 🔧 Timestamp Converter Unix timestamp to date converter, real-time clock, timezone switching, relative time, and batch conversion. 🔧 Unit Converter Supports length, weight, temperature, speed, area, data storage units real-time conversion. Batch mode and quick reference tables. 🔧 Random Number Generator Range settings, allow/forbid duplicates, lottery mode, batch generation, distribution statistics. Pure frontend processing. 🔧 Web Screenshot Tool Enter a URL to generate webpage thumbnails. Supports full-page and viewport screenshots. HTML preview screenshot. Pure frontend, download PNG. 🔧 Date Calculator Calculate date differences, add/subtract dates, count business days, compute age, and countdown to events. Pure client-side processing. 🔧 BMI Calculator Calculate Body Mass Index with metric/imperial switching. Get BMI classification, health tips, ideal weight range, BMR basal metabolic rate, and body fat percentage estimates. 🔧 Compound Interest Calculator Calculate compound interest with recurring contributions. Visual growth charts, detailed yearly breakdowns. Perfect for retirement planning, education funds, and savings goals. 🔧 Aspect Ratio Calculator Calculate 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. 🔧 Tip Calculator Quickly 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. 🔧 Typing Speed Test Free online typing speed test with real-time WPM and accuracy tracking. Supports English and Chinese practice, local history. Pure front-end, zero dependencies. 🔧 Text-to-Speech Reader Free 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. 🔧 Speech-to-Text Converter Free 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 f 🔧 Timezone Converter Free 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. 🔧 Online Screen Recorder Free 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. 🔧 Random Picker Draw items randomly from a list. Supports raffles, lucky draws, random grouping, coin flip, and dice roll with animation effects. Pure front-end local processing. 🔧 Online Age Calculator Exact age in years, months, days. Supports zodiac, Chinese zodiac, and total life days. Pure frontend. 🔧 Online Barcode Generator Code128, EAN-13, UPC-A, CODE39 and more. Custom size and colors. Pure frontend local generation. 🔧 Color Palette Generator 7 color scheme modes, extract colors from images, export CSS/Sass/JSON. Pure frontend. 🔧 Online Countdown Timer Custom duration, Pomodoro mode, preset timers, sound alerts, full-screen. Pure frontend. 🔧 Currency Converter 160+ currencies with real-time calculation. Built-in rates for USD, EUR, CNY, JPY and more. 🔧 File Hash Checker Compute MD5, SHA1, SHA256, SHA512 file checksums locally in browser. Drag-and-drop, batch processing, hash comparison. No uploads. 🔧 File Size Converter Convert B/KB/MB/GB/TB/PB with binary (1024) and decimal (1000) modes. Pure frontend. 🔧 Image Color Palette Extractor Extract dominant colors from images, generate palettes in HEX/RGB. One-click copy. Pure frontend. 🔧 Keyboard Key Tester NKRO testing, key code inspection, combo key testing. Real-time event details. Pure frontend. 🔧 Loan Calculator Fixed payment and fixed principal methods. Amortization schedule, total interest. Pure frontend. 🔧 Morse Code Converter Text↔Morse bidirectional conversion with audio playback and flash demo. Pure frontend. 🔧 Password Strength Checker Real-time security analysis, brute-force time estimate, weak pattern detection. Pure frontend. 🔧 Percentage Calculator 7 modes: percentage of, reverse, discount, tip, increase, decrease, change. Pure frontend. 🔧 Discount Calculator Calculate sale price, reverse discount rate, bulk discount summary, and tax-inclusive pricing. Essential shopping tool. 🔧 Pomodoro Timer Focus, short break, long break modes. Task management and statistics. Pure frontend. 🔧 QR Code Generator Text, URL, WiFi, email, phone types. Custom colors, size, error correction level. Pure frontend. 🔧 Scientific Calculator Trig, log, power, factorial, constants π/e. Keyboard input, history. Pure frontend. 🔧 PPI Pixel Density Calculator Calculate screen PPI pixel density, check Retina standard, viewing distance recommendations and device references 🔧 Social Media Image Size Guide Free 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. Pu 🔧 Number to Words Converter Free 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 co 🔧 Privacy Policy Online Tools Privacy Policy - Learn how we collect, use, and protect your personal information. 🔧 Terms of Service Online Tools Terms of Service - Learn about the terms and conditions for using our services. 🔧 Emoji Picker Free online emoji picker with category browsing, keyword search, and one-click copy. Includes all Unicode emojis. Pure frontend, no signup required. 🔧 Online Signature Maker Free 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 🔧 Spin the Wheel Free 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. Fo 🔧 Text to Handwriting Free 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. D 🔧 Fancy Text Generator Free 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. Pu 🔧 Audio Recorder Free 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 processin 🔧 White Noise Generator Free 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, 🔧 Text Repeater Free 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 ge 🔧 Text to Emoji Converter Free online text to emoji converter. Automatically replace English words with corresponding emoji symbols. Supports random emoji mode, batch conversion. Pure frontend, no data upload. 🔧 Emoji Text Style Generator Free 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 fr 🔧 HTML Tag Stripper Free 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 c 🔧 Word Cloud Generator Free 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. 🔧 Image Blur Tool Free 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 protecti 🔧 Image Sharpener Free 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 enhanc 🔧 Square Footage Calculator Free online square footage calculator. Calculate room, house, or land area. Supports rectangles, L-shapes, circles, triangles and more. Real-time conversion between sq ft, sq meters, sq cm. Perfect fo 🔧 Running Pace Calculator Free online running pace calculator. Three modes: distance+time→pace, distance+pace→time, time+pace→distance. Quick presets for 5K, 10K, half marathon, full marathon. Pace reference table included. 10 🔧 Macro Calculator Free online macro calculator using the Mifflin-St Jeor equation. Calculate daily protein/carbs/fat intake for weight loss, muscle gain, or maintenance. Multiple activity levels and imperial/metric uni 🔧 Text Indentation Fixer Free online Text Indentation Fixer. Auto-fix paragraph indentation, support first-line indent, full-width spaces, trim trailing spaces, merge blank lines. 🔧 Percentage Change Calculator Free online percentage change calculator. Calculate percent increase/decrease between two values. Shows change percentage, difference, direction, multiplier, and detailed calculation steps. Great for 🔧 Mailto Link Generator Free online Mailto Link generator. Create mailto links with to, CC, BCC, subject, and body fields. Supports multiple email addresses for CC/BCC, URL encoding, copy link and HTML code. Runs 100% locall 🔧 Phone Link Generator Free online Phone Link generator. Create tel: and sms: phone/text links. Customize country code, phone number, SMS prefill text. Copy link or HTML code. Runs 100% locally. 🔧 Calendar Event Generator Free online Calendar Event generator. Generate ICS calendar files and Google Calendar links. Supports event title, description, time, location, all-day events. One-click download ICS or open in Google 🔧 Domain Name Generator Free online domain name generator. Smart domain suggestions by keyword, multiple TLDs (.com/.net/.org), random creative names, combos. Check availability, one-click copy. Pure frontend. 🔧 Correlation Calculator Free online Pearson correlation coefficient calculator. Compute r value with scatter plot and trend line. Statistical analysis tool, pure frontend. 🔧 Slug Generator Free online URL slug generator. Convert any text to a clean, SEO-friendly URL slug. Custom separators, case control, length limits. Essential for SEO optimization. 🔧 Emoji Meaning Finder Free online emoji dictionary and meaning lookup tool. Search 3000+ emojis with detailed meanings and usage scenarios. Find out what any emoji means. Filter by category, click for full details. Pure fr 🔧 Dead Pixel Test Free online dead pixel test for monitors. Full-screen solid color tests (red/green/blue/white/black/gray) to quickly find dead/stuck/bright pixels on your screen. Supports fullscreen mode, keyboard sh 🔧 GIF to Video Converter Free 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. 🔧 Random Quote Generator Free online random quote generator. Discover 300+ inspirational, philosophical, love, funny, and wisdom quotes from famous authors. Browse by category, copy or share with one click. 🔧 Year Progress Bar Free online year progress tracker. See how much of the year has passed with real-time percentage, remaining days, monthly overview, and week view. Check any date's progress. 🔧 Pythagorean Theorem Calculator Free online Pythagorean theorem calculator. Enter any two sides to calculate the hypotenuse, legs, angles, and area of a right triangle. Supports multiple units with canvas visualization. 🔧 Standard Deviation Calculator Free online standard deviation calculator. Compute mean, variance, standard deviation, range, CV for any data set. Supports sample and population modes with bar chart visualization. 🔧 Fraction Calculator Free online fraction calculator. Add, subtract, multiply, and divide fractions with step-by-step solutions. Simplify fractions and convert to decimals and percentages automatically. 🔧 Combination & Permutation Calculator Free online combination and permutation calculator. Calculate nCr and nPr with formulas, step-by-step solutions. Includes reference table of common values. 🔧 Mortgage Calculator Free online mortgage calculator. Calculate monthly payments, total interest, and amortization schedule. Supports fixed-rate and principal-reducing methods with donut chart analysis. 🔧 Margin Calculator Free online margin calculator. Calculate gross margin, markup, cost and revenue. Enter any two values to find the rest. 🔧 Salary Calculator Free online salary calculator. Convert between hourly, daily, monthly and annual salary instantly. 🔧 Savings Calculator Free online savings calculator. Set a goal or enter monthly deposits. Supports compound interest and initial deposit. 🔧 ROI Calculator Free online ROI calculator. Calculate return on investment, annualized ROI and total gain. Perfect for investment analysis. 🔧 Monitor Test Free online monitor test tool. Check for dead/stuck pixels, test color accuracy, gradients and contrast. Full-screen mode. 🔧 Anagram Finder Free online anagram finder. Enter letters or words to find all possible anagrams, unscramble words, and generate word combinations. Perfect for word games, crossword puzzles, and creative writing. 🔧 Audio Spectrum Analyzer - Free Online Audio Spectrum Tool Free online audio spectrum analyzer. Real-time FFT analysis of microphone input with visual spectrum display. Identify frequencies, visualize audio waves. Pure frontend, no uploads. 🔧 Blog - Online Tools Online Tools Matrix Blog: Tips on free online tools, developer productivity guides, and tech deep dives. Pure frontend, zero dependencies, works offline. 🔧 Bulk URL Opener - Free Online Tool to Open Multiple URLs Free online bulk URL opener. Open multiple URLs in new tabs at once. Supports custom delay, deduplication, URL validation. Perfect for SEO audits, website checking, research. Pure frontend. 🔧 Days Calculator Free online days calculator. Calculate days between two dates, add or subtract days from a date, and count business days. Perfect for countdowns, project planning, anniversaries, and deadline tracking 🔧 Emoji Copy & Paste Free online emoji copy & paste. 2000+ emojis by category, one-click copy to clipboard. Search and recent history. Client-side only. 🔧 Microphone Test - Free Online Mic Testing Tool Free online microphone test tool. Test your mic in one click with real-time audio waveform display and volume level meter. Pure frontend, no uploads, privacy safe. 🔧 Pastebin - Free Online Text Sharing Tool with Syntax Highlighting Free online pastebin tool. Paste text and get a shareable link instantly. Features syntax highlighting, line numbers, and one-click copy. 100% client-side, no server upload. 🔧 Periodic Table Free interactive periodic table of elements. Explore all 118 elements with detailed information: atomic number, atomic mass, electron configuration, melting/boiling points. Perfect for chemistry stude 🔧 Roman Numeral Converter · Free Online Conversion Tool Free online Roman numeral converter. Convert Roman numerals to numbers, or numbers to Roman numerals. Range 1-3999. Pure frontend, fast and accurate. 🔧 Screen Ruler - Online Pixel Measurement Free online screen ruler tool. Measure pixel distances on your screen with precision. Supports horizontal/vertical measurement, custom DPI, and drag-to-measure. Runs 100% locally in browser. 🔧 QR Code Generator Free online QR Code generator. Create QR codes from text, URLs, WiFi config, vCard, and more. Supports logo embedding, custom colors, multiple sizes. Client-side only. 🔧 Webcam Test - Free Online Camera Test Tool Free online webcam test tool. Test your camera in one click. Check resolution, frame rate, brightness, contrast. Pure frontend, no uploads, privacy safe. 🔧 WhatsApp Link Generator - wa.me Links - One-Click Chat - Free Free online WhatsApp link generator. Create wa.me chat links with phone number and optional message. One-click copy. For customer service and business. 🔧 Whitespace Remover - Remove Spaces, Tabs & Newlines Free online whitespace remover tool. Remove extra spaces, tabs, newlines, zero-width characters and more with one click. Runs 100% locally in browser, no data uploaded. 🔧 Yes No Generator - Random Decision Maker - Free Online Free online yes or no generator. Random decision maker with multiple modes: magic 8-ball, wheel, coin flip. Fun animations. Client-side only. 🔧 YouTube Thumbnail Downloader - HD Cover Extractor · Multi-Resolution · Free Free online YouTube thumbnail downloader. Enter any YouTube video URL to get HD cover images instantly. Supports maxresdefault, hqdefault, and more resolutions. One-click download. Pure frontend, no u 🔧 Weight Converter Free online weight converter. Convert between kilograms (kg), grams (g), pounds (lb), ounces (oz), stones (st), tons (t) and more. Instant conversion, pure frontend. 🔧 Length Converter Free online length converter. Convert between meters (m), kilometers (km), centimeters (cm), millimeters (mm), feet (ft), inches (in), yards (yd), miles (mi) and more. Instant conversion, pure fronten 🔧 Morse Code Converter Free online Morse code converter. Bidirectional conversion between text and Morse code supporting letters, numbers, and common punctuation. Customizable separators and audio playback. Pure frontend. 🔧 Typing Speed Test Free online typing speed test. Test your typing speed (WPM/CPM) with English words and text modes. Real-time display of typing speed, accuracy, and time elapsed. Pure frontend. 🔧 🔤 Acronym Generator Free 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 project 🔧 AES Encrypt/Decrypt Free online AES encryption and decryption tool using AES-256-GCM algorithm. Encrypt text with password protection, Base64 output. Client-side processing, data never uploaded. Perfect for secure messag 🔧 AES Encrypt & Decrypt Free online AES encrypt & decrypt tool using Web Crypto API with AES-256-CBC standard. Encrypt and decrypt text with custom key and IV, Base64 output. Pure frontend, no server upload. 🔧 🤖 AI Prompt Generator Free online AI prompt generator supporting ChatGPT, Midjourney, DALL-E, and Stable Diffusion. Generate structured, high-quality prompts. 🔧 ⏰ Online Alarm Clock Free online alarm clock. Set custom alarm time, choose ringtone and volume. Supports one-time and daily repeat alarms. Plays sound and shows notification when time's up. Pure frontend, no app installa 🔧 Alphabetizer Free online alphabetizer tool. Sort your text alphabetically (A-Z or Z-A) instantly. Supports line sorting, ignore case, deduplication, reverse order. Pure frontend, no data uploaded to server. 🔧 🔄 Anagram Finder Free online anagram finder. Enter letters or words to find all possible anagrams, unscramble words, and generate word combinations. Perfect for word games, crossword puzzles, and creative writing. 🔧 Anagram Solver Free online Anagram Solver. Enter any letters and find all possible English words. Perfect for Scrabble, Wordle, Words With Friends, and crossword puzzles. 100% client-side, private, and offline-capab 🔧 🌈 Animated Backgrounds Free online CSS animated background generator. Create stunning animated gradient backgrounds, particle backgrounds, and wave animations. Multiple animation styles (gradient flow, floating particles, w 🔧 Animated Gradient Background Generator Free online animated gradient background generator. Create stunning CSS animated gradient backgrounds with custom colors, angle, speed. Real-time preview, one-click copy CSS code. Perfect for website 🔧 APA Citation Generator Free online APA citation generator. Create APA 7th edition citations for books, websites, journals, and more. Supports multiple formats with one-click copy. Pure frontend, no data upload. 🔧 🔑 API Key Generator Free online API key generator for secure random keys and tokens. Customizable length, prefix, character set, batch generation. 🔧 Online API Tester Free online API Tester, pure client-side. Supports GET/POST/PUT/DELETE HTTP methods with custom headers, body, and query parameters. View response status and data in real-time. 🔧 ASCII Art Generator Online Free online ASCII art generator. Convert text to cool ASCII art fonts. Multiple styles including bold, fancy, inverted. Real-time preview, one-click copy. 🔧 Online ASCII Table Lookup Tool Free online ASCII table lookup tool. Supports decimal, hexadecimal, octal, and binary cross-reference. Filter by category, search by value or character, and one-click copy. Pure frontend, zero depende 🔧 Audio EQ Presets Free online audio EQ presets tool to apply professional equalizer settings to your audio with one click. Presets include Rock, Pop, Jazz, Classical, Electronic, Vocal Boost, Bass Boost, Speech, Teleph 🔧 Audio Equalizer Free online audio equalizer tool. 10-band graphic EQ using Web Audio API. Adjust bass, mid, and treble frequencies. 100% client-side, no file uploads. 🔧 Audio Joiner Free online audio joiner/merger to concatenate multiple audio files into one. Supports drag-and-drop reordering, trimming, and crossfade transitions. Pure frontend Web Audio API processing, files neve 🔧 Audio Merger Free online audio merger tool. Combine multiple audio files (MP3, WAV, OGG, M4A) into one. Reorder files. 100% client-side, no server uploads. 🔧 Audio Noise Reducer Free online audio noise reduction tool using Web Audio API noise gate and spectral noise reduction techniques. Effectively reduces background noise, hiss, and hum. Adjustable threshold, attack/release 🔧 Audio Normalize 🔧 Audio Panner Free online audio panner tool to pan audio between left and right channels. 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