Encrypt and decrypt text using DES algorithm. Free online tool for secure message encoding in your browser. Supports des, encrypt.
All security tools run locally without sending any data externally. Password generation, hash computation, and other sensitive operations happen entirely in your browser.
When testing security tools, sending sensitive data like passwords or tokens to a remote server defeats the purpose. We built this tool to run entirely in your browser using the Web Crypto API — your data never leaves your device.
Yes, completely free with no signup required.
Yes, it works on mobile browsers with touch support.
Security
Completely safe. All checks run locally in your browser without sending any requests or data externally.
ToolPure supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hash algorithms. All hashing is performed locally using the Web Crypto API, ensuring your data never leaves your browser.
Yes, you can decode JWT tokens to inspect header and payload, and generate new JWT tokens with custom claims. The tool supports HS256, HS384, and HS512 signing algorithms.
Yes, password generation uses the Web Crypto API getRandomValues() function, which provides cryptographically secure random numbers. Generated passwords are not stored or transmitted anywhere.
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.