Developer Tools
That Respect Privacy
All processing happens in your browser. No data ever leaves your device.
Zero Data Collection
We literally cannot see your data. Everything happens in your browser.
Always Free
No registration required. No hidden fees. All tools are free forever.
Lightning Fast
Native Web Crypto API. No network latency, no server delays.
All Tools
Browse by category or explore all 14 free developer tools
Password Generator
Generate secure, random passwords with custom rules
QR Code Tool
Create QR codes that stay private. Your data never leaves your device
Base64/URL/Hex Encoder Decoder
Base64/URL/Hex encoder and decoder. Zero-knowledge, client-side processing
SHA-256 Hash Generator
Generate SHA-256, SHA-1, or MD5 hashes for text and files
JSON Formatter & Validator
Format, validate, and minify JSON data with syntax highlighting
AES-256-GCM Encryptor
Client side aes encryption tool. Encrypt text or files using AES-256-GCM
UUID Generator
Generate cryptographically secure UUIDs (v1, v4, v7) for your applications
JWT Decoder Online
JWT decoder without verification. Safely decode and inspect tokens
Text Analyzer
Analyze text with detailed character, word, and line count statistics
Markdown Preview
Live Markdown preview with GitHub Flavored Markdown support
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
Text Diff Tool
Compare two texts and highlight differences. Line-by-line diff viewer
HMAC Generator
Generate HMAC signatures with SHA-256, SHA-1, or MD5 for API authentication
Image Compressor
Compress images client-side. Reduce file size without uploading to servers
Ready to start?
All tools are free, require no registration, and work offline. Your privacy is our priority.
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