Free Utilities
The utilities section holds small security and developer helpers: a strong password generator, a hash and HMAC generator for text and files, and a bulk UUID generator.
They use your browser's Web Crypto API - the same cryptographically secure randomness and hashing that browsers rely on for HTTPS. Nothing you generate or hash is transmitted, which is exactly what you want for passwords and secrets.
Choose a utility below.
Password Generator
Create uncrackable passwords using the browser Crypto API. Customize character types, exclude ambiguous symbols, check NIST entropy in real-time, and generate in bulk.
Hash & HMAC Generator
Calculate cryptographic digests including SHA-256, SHA-512, SHA-384, SHA-1, and HMAC signatures client-side using native Web Crypto. Verify file checksums without uploading.
UUID / GUID Generator
Instantly generate RFC 4122 version-4 UUIDs. Supports bulk generation up to 500, uppercase/lowercase toggles, with or without hyphens, curly braces, and JSON array formatting.