SHA-224 is a member of the SHA-2 family that produces a 224-bit digest, shown as 56 hexadecimal characters. It is computed with the SHA-256 algorithm using different initial values and a truncated output.

How does SHA-224 differ from SHA-256?

SHA-224 uses the same compression function as SHA-256 but starts from a different set of eight initial hash values and discards the last 32-bit word, leaving a 224-bit result instead of 256-bit.

Yes. SHA-224 is part of the SHA-2 family with no known practical collision or preimage attacks, making it suitable for integrity checks and fingerprints where a shorter digest than SHA-256 is preferred.

Why is SHA-224 not in the Web Crypto API?

Browsers expose SHA-1, SHA-256, SHA-384, and SHA-512 through crypto.subtle but not SHA-224. This tool therefore implements the SHA-224 algorithm directly in JavaScript so it works everywhere.

Does my text get uploaded anywhere?

No. The entire SHA-224 computation runs in your browser, so the text you enter never leaves your device and the tool works offline.

SHA-224 Hash Generator

What SHA-224 produces

SHA-224 is a member of the SHA-2 family that outputs a 224-bit digest, displayed as 56 hexadecimal characters. It offers a slightly shorter fingerprint than SHA-256 while retaining the same security foundation, which is useful when storage or display space is tight.

How it works

SHA-224 shares the SHA-256 compression function exactly. The only differences are the eight initial hash values and the final truncation:

1. Start from the SHA-224 specific initial values (h0…h7).
2. Pad the message and process it in 512-bit blocks,
   updating the eight 32-bit words through 64 rounds each.
3. Concatenate the first seven words and drop the eighth,
   giving a 224-bit result.

Because browsers expose SHA-256 but not SHA-224 through the Web Crypto API, this tool implements the algorithm in JavaScript, including the message schedule, round constants, and big-endian length encoding, so the output matches any standard SHA-224 library.

Example and tips

The SHA-224 of an empty string is d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f, which you can use to verify the tool is correct. SHA-224 is a sound choice for integrity checks and fingerprints; for password storage you still want a slow, salted function such as bcrypt or Argon2, since fast hashes like SHA-224 are not designed to resist brute-force guessing of secrets.