SHA-256 Generator
Generate a 256-bit SHA-256 hash. The current default for integrity, signatures, and blockchains.
What is SHA-256?
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The modern default for cryptographic hashing.
SHA-256 is part of the SHA-2 family, designed by the NSA and published in 2001. It produces a 256-bit hash (64 hex characters) and is considered cryptographically secure for the foreseeable future. It powers TLS certificate signatures, git's transition target, Bitcoin block hashing, and most digital signature schemes.
Still not appropriate for password storage — passwords need a deliberately slow algorithm like bcrypt, scrypt, or argon2 to resist brute-force attacks.