What is a SHA-512 hash generator?
A SHA-512 hash generator converts text into a 512-bit SHA-2 digest, usually written as 128 hexadecimal characters. Enter text and this tool calculates the matching hash locally in your browser.
Use SHA-512 when a protocol, file format, API, or test vector explicitly requires a 512-bit digest. A longer output does not make SHA-512 the automatic choice for every checksum or development task.
How to generate a SHA-512 hash
- Type or paste text into Input, or select Example to load
abc. - Choose lowercase or UPPERCASE from Letter case.
- Copy the generated hash from the output panel.
The result updates as you edit. Spaces, Tabs, and line endings are preserved, and the exact input is encoded as UTF-8. Letter case changes only the Hex display.
SHA-512 hash example
The UTF-8 text abc produces:
ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49fThat is 512 bits, or 64 bytes, displayed as 128 Hex characters.
SHA-512 vs SHA-256
| SHA-256 | SHA-512 | |
|---|---|---|
| Digest size | 256 bits | 512 bits |
| Hex length | 64 characters | 128 characters |
| Block size | 512 bits | 1024 bits |
| Word size | 32 bits | 64 bits |
Both are modern SHA-2 algorithms. SHA-512 can perform well on many 64-bit processors, but performance and digest length do not replace compatibility requirements. Choose SHA-256 when broad support and a 256-bit digest meet the specification; choose SHA-512 when the system requires it.
When should you use SHA-512?
SHA-512 is appropriate for reproducing a known SHA-512 value, testing an integration, or meeting a protocol that names this algorithm. For content integrity, the expected digest must still come from a trusted channel; a plain digest alone does not authenticate its publisher.
This generator creates one unkeyed digest. It does not add a secret key, salt, or work factor, so it is not an HMAC or a password hashing tool.
SHA-512 vs SHA-384
SHA-512 and SHA-384 share a 64-bit word and 1024-bit block structure, but SHA-384 uses different initial values and a defined 384-bit output. Truncating a SHA-512 digest does not produce SHA-384.
See NIST FIPS 180-4 for the definitions of both algorithms.
SHA512 Hash Generator FAQ
Can a SHA-512 hash be decrypted?
No. SHA-512 is a one-way hash function, not encryption. Verification requires hashing a candidate input and comparing the result.
Is SHA-512 suitable for password storage?
Not by itself. Plain SHA-512 is fast and lacks the dedicated work factor expected of password hashing. Use Argon2, bcrypt, scrypt, or PBKDF2 instead.
Does uppercase SHA-512 mean something different?
No. Lowercase and uppercase Hex represent the same 64 digest bytes. Choose the form required by the system you are testing.