Online SHA-512 Hash Tool
Online SHA512 encoder: compute the SHA-512 hash digest of any text in your browser instantly. Suited for secure checksums and content fingerprints.
Tool input and output
About the SHA-512 hash
SHA-512 is part of the SHA-2 family and produces a fixed 128-character hexadecimal digest, twice the length of SHA-256. It usually performs well on 64-bit platforms and is commonly used where higher security strength is required for checks and signatures.
This tool computes SHA-512 instantly in your browser, and the same text always yields the same result. Compared with SHA-256, SHA-512 offers higher output entropy for cases with stronger collision-safety requirements.
Which standard defines SHA digests?
SHA-1, SHA-256 and SHA-512 are specified in NIST FIPS 180-4. A digest shows whether a message changed. It is not encryption. SHA-1 is no longer recommended for new security uses.
“This standard specifies hash algorithms that can be used to generate digests of messages. The digests are used to detect whether messages have been changed since the digests were generated.”
Frequently Asked Questions
How do I choose between SHA-512 and SHA-256?
Both belong to the SHA-2 family with no known practical collisions. SHA-512 has a longer digest and higher output entropy, and is faster on 64-bit platforms; either works for general use.
How long is a SHA-512 digest?
Fixed at 512 bits, displayed as 128 hexadecimal characters, regardless of how long the input is.
Is SHA-512 secure?
SHA-512 has no known practical collision attacks and is a widely accepted secure hash algorithm, suitable for file checksums, digital signatures and similar uses.