Keccak-224 Hash Generator

Keccak-224 is a 224-bit member of the Keccak sponge-function family. It produces a fixed-size digest that is commonly written as 56 lowercase hexadecimal characters. Keccak is the algorithm family selected by NIST during the SHA-3 competition, but raw Keccak hashes are not byte-for-byte interchangeable with the standardized SHA3-* hash functions.

This tool hashes the text entered in the input box and writes the Keccak-224 digest to the output box. The same exact input text produces the same hash each time, which makes it useful for checking sample values, fixtures, and compatibility notes that explicitly name Keccak-224.

Use this page when you need a quick Keccak-224 digest for sample text, test vectors, comparisons with software that specifically asks for Keccak-224, or checks against systems that use pre-standard Keccak output. Do not use this output as a SHA3-224 digest: SHA3-224 is a related FIPS 202 SHA-3 function and intentionally produces different values from Keccak-224 for the same input.

The generated value depends on the exact text being hashed. Spaces, tabs, punctuation, capitalization, line endings, trailing newlines, and Unicode characters all change the result. The tool hashes text only; it does not read files, decode hexadecimal input as binary data, add salts, create HMACs, manage keys, or provide password storage. For authentication, signatures, password hashing, or protocol integration, use the algorithm and encoding required by that system and prefer reviewed cryptographic libraries.