Generate SHA3-256/384/512 and Keccak-256 digests (used by Ethereum). SHA-3 / Keccak Hash is a free online tool from the ToolsRift Hash & Crypto Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Paste your text and choose a variant to compute its SHA-3 or Keccak-256 digest instantly, shown as a hex string to copy.
SHA-3 uses the sponge-based Keccak construction rather than the Merkle–Damgård design of SHA-2, giving it a different security profile.
Ethereum uses Keccak-256 for addresses, function selectors and state hashing. Note it differs slightly from the final SHA3-256 standard.
No — like all cryptographic hashes they are one-way and cannot be reversed to the original input.