SHA-512 Hash Generator
Generate SHA-512, SHA-512/224 and SHA-512/256 hashes from text, hex or Base64, with hex or Base64 output and a per-line mode. All computed in your browser.
SHA-512 is the 512-bit member of the SHA-2 family, working on 64-bit words. This tool also computes SHA-512/224 and SHA-512/256 — truncated variants with their own initial values that give shorter digests while keeping SHA-512’s internal strength. Input can be text, hex or Base64, and everything is computed in your browser.
How to use this tool
- Paste your input and choose its encoding.
- Pick SHA-512, SHA-512/224 or SHA-512/256.
- Optionally hash each line separately.
- Copy the digest as hex or Base64.
Formula
SHA-512 processes 1024-bit blocks through 80 rounds on 64-bit words, giving a 512-bit digest. The /224 and /256 variants use different starting constants and output only the first 224 or 256 bits.
The truncated variants are not just a cut-off of SHA-512: their distinct initial values make them independent hash functions, as specified in FIPS 180-4.
Example
SHA-512 of "abc" is ddaf35a1…54ca49f, SHA-512/256 of "abc" is 53048e26…07e7af23 — both from the FIPS 180-4 test vectors.
Frequently asked questions
Why use SHA-512/256 instead of SHA-256?
On 64-bit hardware SHA-512/256 is often faster than SHA-256 while giving the same 256-bit output, and it resists length-extension attacks that plain SHA-256 is prone to.
Is SHA-512 good for passwords?
No — like all fast hashes it is unsuitable for passwords on its own. Use a slow, salted scheme such as bcrypt, scrypt or Argon2.
What does the /224 mean?
It is the output length in bits. SHA-512/224 runs the full SHA-512 algorithm but keeps only the first 224 bits, with its own starting constants.
Sources
Last updated:
Page address with these inputs: https://kakao.mobile/tools/sha-512-hash-tool/
Cite or embed this tool
kakaoCalc. (2026, November 8). SHA-512 Hash Generator. https://kakao.mobile/tools/sha-512-hash-tool/
“SHA-512 Hash Generator.” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/sha-512-hash-tool/.
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