Free password, hash and UUID generator

This free generator creates cryptographically secure random passwords, SHA-256 and SHA-512 hashes, and UUID v4 values locally in your browser. Nothing you generate is sent anywhere.

• Strong random passwords and memorable passphrases.
• SHA-256 and SHA-512 hashes of any text.
• Bulk UUID v4 generation.

Frequently asked questions

Is this password generator safe?

Yes. Passwords are generated in your browser using the Web Crypto secure random number generator and are never sent to a server.

How do I generate a SHA-256 hash online?

Open the Black Hoodie Dev password generator, switch to the hash tool, and type or paste your text. The SHA-256 (or SHA-512) digest is computed instantly in your browser.

Can I generate many UUIDs at once?

Yes. The UUID tool generates UUID v4 values in bulk.