FreeDev Tools

Hash Identifier

Identify hash types from their format β€” MD5, SHA family, bcrypt, Argon2, and more.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Paste hashes

    One per line β€” hex digests, bcrypt strings, crypt formats.

  2. 2

    Read the candidates

    Each line lists the algorithms matching its format.

  3. 3

    Disambiguate if needed

    For same-length candidates, context (source system) decides.

Frequently Asked Questions

By format analysis: prefix signatures identify bcrypt ($2b$), Argon2, and Unix crypt variants outright, while bare hex digests are narrowed down by length β€” 32 chars suggests MD5, 64 suggests SHA-256, and so on.