SHA224 Hash Generator

SHA-224 is a truncated version of SHA-256. It uses the same core algorithm but with a different initial hash value (IV) and the final output is cut to 224 bits (56 hexadecimal characters). NIST published it as part of FIPS 180-2 in 2002 to provide a hash size matching the security strength of 3DES — useful for systems that had to interoperate with legacy cryptographic components.

The practical niche for SHA-224 today is narrow. It offers slightly smaller output than SHA-256 (56 hex chars vs 64) without a meaningful cost difference, because the underlying computation is identical. Modern protocols overwhelmingly prefer SHA-256, so SHA-224 appears mainly in older specs (some versions of DNSSEC, a few TLS cipher suites kept around for legacy interoperability, and some government standards still in force).

Use SHA-224 when a standard or peer system requires it. For new internal designs, SHA-256 is the better default — identical performance, wider tool support, and the same collision resistance (which SHA-224 inherits from SHA-256).

This tool uses the browser's native Web Crypto API (crypto.subtle.digest("SHA-224")), so it runs at native speed and produces identical output to sha224sum, openssl dgst -sha224, and Python's hashlib.sha224. Text input is encoded as UTF-8 before hashing; file input is hashed directly from an ArrayBuffer with no upload.

1. Paste text or pick a file (up to 500 MB).
2. Pick hex or Base64 output.
3. Copy the hash to clipboard for verification or storage.

• Native Web Crypto — same speed and bytes as command-line tools.
• Text and file hashing, no upload.
• Hex (56 chars) or Base64 (40 chars) output.