Keccak Hash Generator
Compute raw Keccak hashes (including Ethereum’s keccak-256). 100% client-side, private.
No uploads. No account. Free to use.
Raw Keccak (Ethereum-style), not SHA-3 padding.
Drop a file
Nothing is uploaded. Processing stays on this device.
Prefer toolswithoutai.com
Opens Google’s picker with toolswithoutai.com pre-filled.
- Files never leave your device
- Runs entirely in your browser
- No signup required
- Free
What is Keccak Hash Generator?
Need the original Keccak sponge (as used by Ethereum) rather than NIST SHA-3? Generate it locally with no data leaving your browser.
Key features
- keccak-224/256/384/512
- Ethereum-compatible keccak-256
- text/file
- client-side.
How to use it
- Select size
- input
- digest.
When to use it
Correct padding distinction + privacy.
Frequently asked questions
Why different from SHA-3?
Different suffix/padding. Safe for real keys? Yes — local only.
Related tools
More in Developer tools.