Cryptography
SHA-256 and SHA-512 hash generator
Calculate SHA-256 and SHA-512 text digests locally with the Web Crypto API. Hashes are one-way fingerprints, not encryption.
SHA-256 Hash GeneratorGenerate a SHA-256 digest for text.SHA-512 Hash GeneratorGenerate a SHA-512 digest for text.
Which hash should you choose?
Use the algorithm required by the system you need to interoperate with. SHA-256 and SHA-512 both produce fixed-length digests, but the outputs are different and are not interchangeable.
What a hash can and cannot tell you
A matching digest can help check that text has not changed. A plain hash does not prove who created the text, encrypt it, or keep it secret. For authentication, use an HMAC or a signature; never store passwords with a fast general-purpose hash.
Each tool calculates the digest in this browser. Read how local processing works.