04 / Security
Hash & Security
MD5, SHA-1, SHA-256, SHA-512, UUID v4, and HMAC. Uses the browser Web Crypto API.
🔒 Your data never leaves this page
04.01
Hash Generator
Select one or more algorithms then click Generate. SHA variants use the browser Web Crypto API. MD5 is a verified pure-JavaScript implementation.
WEB CRYPTO API
04.02
UUID Generator
Generate cryptographically secure v4 UUIDs using crypto.randomUUID() built into your browser. No server involved.
CRYPTO.RANDOMUUID
04.03
HMAC Generator
Generate a Hash-based Message Authentication Code using a secret key. Uses the browser Web Crypto API — your key and message stay entirely local.
WEB CRYPTO API