Type your text, pick an algorithm and press Run — the hash appears below. Run it again or switch algorithms to compare the results.

Does my text get sent anywhere?

No. It's computed with the browser's built-in Web Crypto (crypto.subtle), so nothing leaves your device — it even works offline.

What is a hash actually for?

The same input always gives the same hash, and changing a single character changes it completely. That's why hashes are used as checksums — to prove a file or message hasn't been tampered with.

SHA-256 Hash Generator (Verify Integrity)

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SHA-256 Hash Generator

Get the SHA-256 hash of any text so you can check nothing has been altered. SHA-1, SHA-384 and SHA-512 are here too, and it's all worked out in your browser.

Your text

Enter some text and press Run —
the hashes build up here.