SHAKE256 Hash Generator

Get 256-bit SHAKE256 hashes from text or files in your browser. SHAKE256 is the SHA-3 extendable-output function with a 256-bit security level. Hashing runs locally so your data never leaves your device.

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SHAKE256 output
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SHAKE256 in practice

SHAKE256 (SHA-3 with 256-bit output) is an extendable-output function from the NIST SHA-3 family. Same algorithm as SHAKE128 but with a higher security level. Use it for key derivation, integrity checks, or when you need a fixed 256-bit digest from variable-length input.

Need a shorter digest? Use the SHAKE128 Hash Generator. For a single fixed-length SHA-3 hash, try the SHA3-256 Hash Generator.