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Security & Cryptography

Hash Identifier

Identify the likely type of a hash from its format.

Free browser toolRuns in your browserNo sign-up

Identification is based on length and format, so more than one type can match. It is a hint, not a guarantee.

Everything runs in your browser and the hash is never uploaded.

100% private - runs entirely in your browser.

Your input, keys and passwords are never uploaded. Want proof? Load this page, then turn off your internet - the tool still works. For an exact check, open your browser's DevTools Network tab and confirm no data is sent when you use it.

About the Hash Identifier

Identify the likely type of a hash from its length and format, such as MD5, SHA-1, SHA-256, SHA-512 or bcrypt.

Paste a hash and get a list of matching formats to help you decide how it was made.

Because several hashes share the same length, results are hints rather than certainties.

Key features

  • Detects common hex hashes by length
  • Recognizes bcrypt, Argon2 and Unix crypt prefixes
  • Shows all matching formats
  • Runs entirely in your browser

How to use

  1. 1Paste the hash you want to identify.
  2. 2Read the list of likely hash types.
  3. 3Use the format prefixes to narrow it down.

Examples

MD5 length
Input: 5d41402abc4b2a76b9719d911017c592
Output: MD5 or NTLM

A 32-character hex string matches these types.

bcrypt prefix
Input: $2b$10$...
Output: bcrypt

The $2 prefix identifies a bcrypt hash.

Frequently asked questions

Why do I get more than one result?
Different hashes can share the same length, so a 32-character hex string could be MD5 or NTLM, for example.
Can it reverse a hash?
No. Hashing is one-way. This tool only guesses the type; it cannot recover the original input.
Is my hash uploaded?
No. Identification runs entirely in your browser.

Continue your workflow

Open a related tool to prepare your files or refine the finished result.