SHA3-224
This SHA3-224 online tool helps you calculate hashes from strings. You can input UTF-8, UTF-16, Hex, Base64, or other encodings. Expand to read more.
What is SHA3-224?
SHA3-224 is SHA3 with a 224-bit output. This calculator reads text represented as UTF-8, UTF-16, Hex, Base64, or another available encoding and returns a 224-bit digest in the selected output encoding. A hash is deterministic: identical bytes and options produce the same value.
SHA3 is the standardized FIPS 202 form of the Keccak sponge construction. Its domain separation differs from the original Keccak hash, so a SHA3 digest will not match a Keccak digest with the same output length.
How to use this hash calculator
Enter the source text, choose the correct input encoding, select the digest format and any algorithm-specific options, then calculate the hash. Use Hex when comparing technical test vectors, or Base64 when a compact text representation is more convenient.
Result example
For repeatable results, the visible text and its byte encoding must match. For example, UTF-8 text and a Hex string that represents those same bytes produce the same SHA3-224 result when their input types are selected correctly.
Important limitations
A hash is not encryption and cannot be reversed to recover the input. A plain digest also does not prove who created the data. Use a keyed MAC or digital signature when authenticity is required. Legacy algorithms should not be used for passwords, signatures, certificates, or new security designs merely because the tool can calculate them.
Frequently asked questions
Why does my result differ from another tool?
Check the exact input bytes, character encoding, line endings, output format, and every algorithm-specific option. Displayed text that looks identical can contain different bytes.
Can I use the result to verify data?
Yes, if you compare it with a trusted SHA3-224 value supplied independently. Matching an untrusted digest copied from the same location does not establish authenticity.