Hash Identifier
Identify a hash by its format.
Runs entirely in your browser — nothing you enter is uploaded, logged, or tracked.
Paste a hash to see which algorithms could have produced it — matched by length, character set and known prefixes (like bcrypt’s $2a$ or Argon2’s $argon2). A handy first step for CTF challenges and incident response.
Frequently asked questions
Can it tell me the exact algorithm?
Not always — many hashes share a length (MD5 and NTLM are both 32 hex chars), so it lists the likely candidates. Prefixed formats (bcrypt, Argon2, sha512crypt) are identified precisely.
Does it crack or reverse the hash?
No — it only identifies the likely type. Hashes are one-way and cannot be reversed.
Is my hash uploaded?
No — identification is pure pattern matching done in your browser.