SHA224
Calculate a SHA-224 hash or HMAC from text using UTF-8, Hex, Base64, and other input encodings. Read more
What is SHA224?
SHA-224 is a 224-bit SHA-2 hash standardized in NIST FIPS 180-4. It uses the SHA-256 processing structure with different initial values and a 224-bit result, so it is not simply the first 224 bits of a SHA-256 digest. It is also distinct from SHA3-224.
How to use this hash calculator
Enter the text, choose its byte encoding, and select the output format. Leave HMAC disabled for an ordinary digest. Enable HMAC and enter a secret key only when the expected value is specifically HMAC-SHA-224; the key encoding must also match.
Result example
SHA-224 of UTF-8 abc is 23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7 in Hex. Enabling HMAC produces a different keyed result.
Important limitations
SHA-224 and HMAC-SHA-224 do not encrypt the message. A plain digest detects differences but does not authenticate a source; HMAC can authenticate only while its key remains secret. Do not use a fast SHA-2 digest directly for password storage.
Frequently asked questions
Why does my result differ from another tool?
Check input bytes, encoding, line endings, and whether HMAC is enabled. For HMAC, also match the key bytes and key encoding.
Can I use the result to verify data?
Yes, when the expected value comes from a trusted source and both sides use the same mode. For files, use SHA-224 File Hash.