SHA-256 Hash Generator

SHA-256 is part of the SHA-2 family of cryptographic hash functions, producing a 256-bit (32-byte) hash. It is one of the most widely used hash algorithms in modern cryptography, forming the backbone of TLS certificates, code signing, blockchain systems, and data integrity verification.

This tool lets you compute the SHA-256 hash of any text input instantly in your browser using the Web Crypto API. Common uses include verifying checksums of downloaded files, generating deterministic identifiers from content, comparing strings without storing their plaintext, and understanding how hash functions work.

Unlike MD5, SHA-256 is considered cryptographically secure for most current applications and has no known practical collision attacks. It is the recommended algorithm for general-purpose hashing needs where security matters. Note that for password storage specifically, you should use a dedicated password hashing function like bcrypt, scrypt, or Argon2.