Generate SHA-512/224, SHA-512/256 or full SHA-512 digests from text or files up to 2 GiB each.
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Pasted text up to 100 MiB, read as UTF-8, or files up to 2 GiB each.
SHA-512 variant: SHA-512/224, SHA-512/256, or full SHA-512.
Results appear here.
SHA-512 is the 64-bit member of the SHA-2 family in NIST FIPS 180-4. This tool covers three separate algorithms built on it: SHA-512/224, SHA-512/256 and full SHA-512.
| Variant | Bits | Bytes | Hex characters |
|---|---|---|---|
| SHA-512/224 | 224 | 28 | 56 |
| SHA-512/256 | 256 | 32 | 64 |
| SHA-512 | 512 | 64 | 128 |
SHA-512/224 and SHA-512/256 are their own algorithms, not aliases for SHA-224 and SHA-256 and not simply the first bytes of a SHA-512 digest. They run the SHA-512 structure with distinct initialization values, so they produce entirely different output from the similarly named SHA-2 members.
The reason to want them is speed with a shorter result. The SHA-512 core uses 64-bit words and outruns SHA-256 on 64-bit processors, so SHA-512/256 delivers a 32-byte digest faster than SHA-256 does on most modern hardware.
SHA-256 is more widely supported and the safer default when another system has to read your digests. SHA-384 comes from the same 64-bit core if you want a middle length.
BLAKE3 and BLAKE2b outperform all of them, and SHA3 offers an unrelated internal design.
Warning
Anything involving a password belongs with Argon2id Hash Generator instead.
The truncated variants resist length extension because their output hides part of the internal state. Full SHA-512 does not, which is one more reason to reach for HMAC Generator when a secret key is in play.
Names in this family are a reliable source of confusion. SHA-512/256 and SHA-256 both give you 32 bytes and will never agree on what those bytes are, so always match the exact algorithm the other side names.
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