Hash Identifier
Identify likely hash algorithms from a pasted digest by length, format, and known prefixes such as MD5, SHA-1, SHA-256, bcrypt, and Argon2.
A hash digest pulled from an old database dump or a config file rarely comes labeled with which algorithm produced it, and MD5, SHA-1, SHA-256, bcrypt, and Argon2 each leave a different fingerprint, a specific length, a specific format, sometimes a recognizable prefix like $2b$ or $argon2, that narrows it down without needing to guess blindly. This tool identifies the likely algorithm behind a pasted hash by examining its length, format, and known prefixes, narrowing an unlabeled digest down to its probable source.
See moreSee less about the Hash Identifier
Useful for figuring out which algorithm produced a hash found in an old database export before attempting to verify it, recognizing a bcrypt or Argon2 hash by its distinctive prefix, or confirming whether a 32-character digest is actually MD5 rather than a truncated longer hash.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline