🔐 Free Online Security Tools 23 tools
23+ free browser-based security tools — no signup, no upload, 100% client-side processing
🔒 No data upload — everything runs in your browser
✅ 100% free — no hidden fees, no signup
⚡ Instant — no waiting for server processing
All Security Tools 23 tools
AES Encrypt & Decrypt
Free online AES encrypt & decrypt tool using Web Crypto API with AES-256-CBC standard. Encrypt and decrypt text with ...
BCrypt Hash Generator
Free online BCrypt hash generator using bcryptjs library. Hash passwords with configurable salt rounds and verify pas...
Bcrypt Hash Generator
Free online Bcrypt hash generator. Hash passwords with configurable salt rounds (4-16), verify against existing hashe...
Bip39 Mnemonic
Bip39 Mnemonic
Caesar Cipher Encrypt & Decrypt
Free online Caesar Cipher encryption and decryption tool. Shift letters to encrypt or decrypt text with custom shift ...
SSL Certificate Parser
Free online SSL/TLS certificate parser. Paste PEM format certificate to decode. View issuer, subject, validity period...
CSP Generator
Free online Content Security Policy (CSP) generator. Visually configure security policies to prevent XSS attacks and ...
Email Security Checker
Free online email security checker. One-click check SPF, DKIM, DMARC, and BIMI records for any domain. Prevent email ...
Hash Generator
Free online hash generator with MD5, SHA-1, SHA-256, SHA-384, SHA-512. Real-time text hashing, file hash, HMAC and ha...
MD5 Hash Generator
Free online MD5 hash generator. Generate 32-character MD5 hashes from text. Supports case toggle, real-time calculati...
TOTP Code Generator
Free online TOTP code generator. Generate time-based one-time passwords. Customizable key, algorithm, and code length...
️ Passphrase Generator
Free online passphrase generator. Create memorable XKCD-style word-based passphrases. More secure and easier to remem...
Password Entropy Calculator
Free online password entropy calculator. Scientifically evaluate password strength using Shannon information entropy ...
Online Password Generator
Free online password generator with customizable length and character sets. Pure client-side generation using Crypto ...
Password Pwned Checker
Free online password breach checker that uses HaveIBeenPwned's k-anonymity API to anonymously check if your password ...
Password Strength Meter
Free online password strength meter. Real-time password security analysis with entropy calculation, crack time estima...
PBKDF2 Key Derivation Tool
Free online PBKDF2 key derivation tool. Based on PKCS#5 standard, generates secure cryptographic keys using configura...
SHA-256 Generator
Free online SHA-256 hash generator. Convert text to SHA-256 hash. Supports lowercase and uppercase. Real-time, client...
SHA3 Hash Generator
Free online SHA3 hash generator supporting SHA3-256, SHA3-384, SHA3-512. Pure client-side Web Crypto API processing, ...
Text Encrypt & Decrypt Tool
Free online text encrypt and decrypt tool supporting AES, Base64, URL encoding, ROT13, MD5/SHA256 hashing. Pure front...
TOTP Authenticator Generator
Free online TOTP (Time-based One-Time Password) generator based on RFC 6238. Generate time-synchronized one-time pass...
URL Unshortener
Free online URL unshortener. Safely expand bit.ly, t.co, ow.ly, tinyurl and other shortened URLs. Shows the original ...
Vigenere Cipher Encrypt & Decrypt
Free online Vigenere Cipher encryption and decryption tool. A polyalphabetic substitution cipher using a keyword, mor...
Frequently Asked Questions
Are these security tools really free?
Yes, all 23+ security tools on this page are 100% free to use. There are no hidden fees, no premium tiers, and no signup required. Every tool works entirely in your browser.
Is my data safe when using these security tools?
Absolutely. All security tools on this page process data entirely in your browser using client-side JavaScript. No data is ever uploaded to any server. You can even use them offline after the page loads.
Do I need to install anything to use these security tools?
No installation required. These are web-based tools that work in any modern browser (Chrome, Firefox, Safari, Edge). Just open the tool page and start using it immediately.
How many 23+ security tools are available?
We offer 23+ security tools, covering everything from basic operations to advanced features. Each tool is designed to be simple, fast, and privacy-focused.