Keccak-512 Hash Generator

Generate a Keccak-512 hash of a string of text.

Input your text and tap the generate button.

Question

What is Keccak-512?

Keccak-512 is a 512-bit cryptographic hash function from the Keccak family. This page hashes the entered text as UTF-8 and returns a deterministic 128-character lowercase hexadecimal digest.

Use Keccak-512 when a protocol, test vector, interoperability check, or legacy system explicitly asks for Keccak output with a 512-bit digest. It is related to SHA3-512 because SHA-3 was standardized from Keccak, but the outputs are not interchangeable: SHA3-512 intentionally produces different values for the same input.

The hash depends on the exact text you enter, including whitespace, capitalization, punctuation, line endings, and Unicode characters. A hash is one-way and cannot be decoded back to the original text. Do not treat an unkeyed hash as authentication by itself, and use a dedicated password hashing scheme with salts and work factors for password storage.

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