Security Tools

Password Generator

Generate strong, random passwords with customizable length and character types. Uses cryptographic randomness.

Password Strength Checker

Check password strength with entropy analysis, crack time estimation, and pattern detection. Free password tester.

MD5 Generator

Generate MD5 hash checksums from text or uploaded files. Includes a pure JavaScript implementation with hash verification mode. Free online MD5 hash generator.

SHA256 Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files using the Web Crypto API. Hash verification mode included. Free online SHA hash generator.

Random Token Generator

Generate cryptographically secure random tokens, API keys, and secrets in hex, alphanumeric, base64, or URL-safe formats. Configurable length. Free online random token generator.

QR Code Generator

Generate QR codes for URLs, email, phone, SMS, WiFi. Custom colors, sizes, and download as PNG or SVG.

Barcode Generator

Generate scannable Code 128 barcodes from any text. Customize bar width, height, and text display options. Download barcodes as PNG images. Free online barcode generator.

OTP Generator

Generate secure one-time passwords in numeric, alphanumeric, or alphabetic formats. Auto-refresh timer with customizable length and expiry duration. Free online OTP generator.

Cookie Policy Generator

Generate GDPR-compliant cookie policy documents with customizable cookie types, purposes, and third-party service disclosures. Download as text. Free online cookie policy generator.

Privacy Policy Generator

Generate privacy policy documents. Customize data collection types, third-party services. Download as text.

Terms & Conditions Generator

Generate terms and conditions documents. Company info, jurisdiction, services description. Download as text.

SHA-512 Generator

Generate SHA-512 hashes from text or files. Compare hashes, drag-drop file support. Web Crypto API.

API Key Generator

Generate secure API keys with custom prefix, length, format. Alphanumeric, hex, base64url. Strength indicator.

Salt Generator

Generate cryptographic salts for password hashing in Hex, Base64, or Base64url encoding. Configurable byte length for your security needs. Free online salt generator.

Random Secure String

Generate cryptographically secure random strings with custom character sets, entropy calculation display, and visual strength meter. Perfect for keys and tokens. Free online secure string generator.

Secure Notes

Write secure notes encrypted with AES-GCM and stored locally in your browser. Password-protected with lock/unlock toggle. No data leaves your device. Free online secure notes.

Data Masking Tool

Auto-detect and mask sensitive PII data including emails, phone numbers, SSNs, credit card numbers, and IP addresses in any text. Protect privacy before sharing. Free online data masking tool.

Email Mask Tool

Mask email addresses at light, medium, or heavy obfuscation levels to protect privacy. Batch mode for processing multiple emails at once. Free online email masking tool.

Credit Card Mask

Mask credit card numbers while preserving the last four digits. Auto-detects card type (Visa, Mastercard, Amex) with Luhn validation. Free online credit card masking tool.

Hash Compare Tool

Compare two hash strings for exact equality with automatic hash type detection by length (MD5, SHA-1, SHA-256, SHA-512). Verify file integrity easily. Free online hash compare tool.

Encryption Tool

Encrypt and decrypt text with military-grade AES-256-GCM using the Web Crypto API. PBKDF2 key derivation from your passphrase. All processing in browser. Free online AES encryption tool.

Secure Password List

Generate a batch of secure passwords with customizable rules and entropy-based strength indicators for each password. Bulk generate for teams. Free online password list generator.

Password List Checker

Audit a list of passwords for strength, entropy scores, duplicate entries, and common weaknesses. Identify weak passwords across your organization. Free online password list checker.

Encryption Strength Checker

Analyze encryption key strength by calculating entropy bits, estimated crack time at various speeds, and security recommendations. Free online encryption strength checker.

Decryption Tool

Decrypt AES-256-GCM encrypted text using a password. Built on the Web Crypto API for secure browser-based decryption with no server involvement. Free online AES decryption tool.

JWT Tool

Decode existing JWT tokens or generate new HS256 JWTs. View header, payload, claims, and expiry status with color-coded validation. Free online JWT decode and generate tool.

UUID Tool

Generate UUID v4 identifiers, validate UUID format, and extract version info. Bulk generate up to 50 UUIDs at once with one-click copy. Free online UUID generator and validator.

Text Obfuscator

Obfuscate text using leet speak, vowel replacement, Unicode homoglyphs, zero-width characters, and more encoding methods. Bypass filters creatively. Free online text obfuscator.