About this tool
Hash identification works by analysing the string's length, character set and any structural prefixes. A 32-character hexadecimal string could be MD5, NTLM or MD4, all produce 128-bit output. Prefixes like $2a$ (bcrypt) or $argon2id$ are unambiguous. This tool gives you a ranked candidate list rather than a single answer because many algorithms share output lengths. It runs entirely in your browser and nothing is transmitted. Use this when auditing password databases, reverse-engineering log data or verifying that a hash matches an expected algorithm before cracking or verification attempts.