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Hash Generator

Generate cryptographic digests for checksums and integrity checks using the Web Crypto API. Your text never leaves the browser.

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How to use

  1. Enter the text to hash
  2. Select an algorithm (e.g. SHA-256)
  3. Copy the hex digest

Next step

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    Encode text to Base64 or decode Base64 back to UTF-8. Useful for data URLs, API payloads, and quick debugging—runs fully in your browser.

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    Generate one or many RFC 4122 version 4 UUIDs (GUIDs) with the Web Crypto API. Ideal for test data, primary keys, and request IDs—created locally in your browser.

Frequently asked questions

Which algorithms are supported?

SHA-1, SHA-256, SHA-384, and SHA-512 via the browser Web Crypto API.

Is hashing private?

Yes. Digests are computed locally. Nothing is uploaded—suitable for hashing config values or sample strings without sending them to a server.

Can I reverse a hash to get the original text?

No. Cryptographic hashes are one-way. Use this for integrity checks and fingerprints, not for storing recoverable secrets (use a proper password hash with salt for passwords).