About the SHA-224 Hash Generator
What is a SHA-224 hash?
SHA-224 is a member of the SHA-2 family that produces a 224-bit fingerprint, written as 56 hexadecimal characters. It is essentially SHA-256 with a different starting value and a truncated output, so it shares SHA-256's security while producing a slightly shorter hash.
SHA-224 is chosen mainly when a specification calls for a 224-bit digest, for example to match the key size of certain elliptic-curve or triple-DES schemes. For most purposes SHA-256 is the more common pick, but when you specifically need SHA-224 this tool produces the exact standard value, computed locally in your browser with nothing uploaded.
How to Use This Tool
- Enter your input. Type or paste text on the Text tab, or switch to the File tab and drop in a file. The SHA-224 hash appears instantly.
- Choose the output. Switch between hexadecimal and Base64, and pick upper or lowercase hex.
- Verify a checksum. Paste a hash you were given into the compare box and the tool tells you instantly whether it matches.
- Copy the result. One click copies the SHA-224 hash to your clipboard.
Common Use Cases
- Matching a specification: some protocols and standards call for exactly a 224-bit digest.
- Shorter fingerprints: when you want a SHA-2-strength hash but a slightly more compact string than SHA-256.
- Interoperability: reproduce a SHA-224 value generated elsewhere to confirm two systems agree.
- Integrity checks: verify data against a published SHA-224 checksum.
Frequently Asked Questions
What is the difference between SHA-224 and SHA-256?
SHA-224 uses the same internal algorithm as SHA-256 but starts from a different set of constants and throws away 32 bits of the final output, giving a 224-bit result. Their security is comparable; the choice is usually driven by a specification that asks for a specific length.
How long is a SHA-224 hash?
SHA-224 is 224 bits, written as 56 hexadecimal characters or 38 characters in Base64. As with all hashes, the length does not change with the input size.
Is SHA-224 secure?
Yes. It inherits the security of SHA-256 and has no known practical attacks. Like other fast hashes it is not the right tool for storing passwords, where bcrypt or Argon2 belong.
When should I use SHA-224 instead of SHA-256?
Use SHA-224 when something you are integrating with specifically requires a 224-bit digest. If you get to choose freely, SHA-256 is the more widely supported default.
Can SHA-224 be reversed?
No. Like every cryptographic hash it is one-way; the original input cannot be recovered from the digest.
Can I hash a file with SHA-224?
Yes. Use the File tab to hash any file locally in your browser, producing the standard SHA-224 checksum.