Why are there multiple possible matches?

Some hash algorithms produce outputs of the same length, so without additional context it is impossible to determine the exact algorithm. The tool lists all plausible candidates.

What does 'cryptographically secure' mean?

A cryptographically secure hash function is collision-resistant and suitable for security-sensitive purposes such as password storage or digital signatures. MD5 and SHA-1 are no longer considered secure for these uses.

Can this tool crack or reverse a hash?

No. This tool only identifies which algorithm was likely used. Reversing a hash is computationally infeasible for modern algorithms.

What is bcrypt and why does it look different?

bcrypt is a password-hashing function that embeds cost factor and salt in the output string. Its distinctive $2b$ prefix makes it easy to recognize.

security Free No signup

Hash Identifier

Paste a hash string and identify what algorithm it likely is.

Loading tool…

About this tool

Automatically detect the hash algorithm used to generate a hash string by analyzing its length, character set, and format prefixes. Supports MD5, SHA family, bcrypt, and many more. Shows algorithm details including typical use cases and cryptographic security rating.

How to use

1 Step 1: Paste or type your hash string into the input field.
2 Step 2: The tool instantly analyzes the hash and lists all matching algorithms.
3 Step 3: Review each match — algorithm name, description, typical use cases, and security rating.
4 Step 4: Use the reference table at the bottom to explore all common hash formats.

About this tool

How to use

Frequently Asked Questions