Keccak-224 File Hash
Calculate a Keccak-224 hash from a local file or file URL. Local files are processed in your browser. Read more
What is Keccak-224?
Keccak-224 produces a 224-bit digest using the original Keccak submission’s domain separation. It is not interchangeable with standardized SHA3-224 File Hash, even though both use the Keccak sponge construction. The Keccak team specification documents the family parameters.
How to use this file hash calculator
Choose a local file or URL and select the output encoding. Local files are processed in your browser and are not uploaded; remote URLs must allow browser access through CORS.
Result example
A file containing exactly the three bytes abc produces c30411768506ebe1c2871b1ee2e87d38df342317300a9b97a95ec6a8 in Hex. The filename and metadata are not hashed.
Important limitations
An unkeyed file hash can detect different bytes but cannot prove who supplied the file. Compare it only with a Keccak-224 value obtained through a trusted channel.
Frequently asked questions
Why does my result differ from another tool?
Confirm the expected algorithm is Keccak-224 rather than SHA3-224, then verify that both tools read identical raw bytes.
Can I use the result to verify a download?
Yes, when the publisher explicitly provides Keccak-224 through a trusted source. For encoded text, use the Keccak-224 text calculator.
