Free tools
Quick browser tools.
Nothing leaves your machine.
These tools run entirely in your browser using the Web Crypto API. We don't see, log or persist anything you paste in. If you need the same operations as an API — for instance to hash on a server — try the Hash & Encryption Toolkit.
SHA-256 hash generator
Compute SHA-256 of any text in your browser. Output as hex or base64.
Open tool →SHA-512 hash generator
Compute SHA-512 of any text in your browser. No data leaves your machine.
Open tool →SHA-1 hash generator
Compute SHA-1 of any text. Note: SHA-1 is broken for security, fine for non-cryptographic uses.
Open tool →UUID v4 generator
Generate cryptographically-random UUID v4 identifiers (RFC 4122).
Open tool →