Hash Identifier
Analyze unknown cryptographic hashes and identify their potential algorithms client-side.
Cryptographic Hash Identification
Need to identify an unknown hash value? Paste it here. This tool analyzes its length, character encoding, and structure to determine the most likely algorithms used to generate it (such as MD5, SHA-1, SHA-256, bcrypt, or Argon2).
Ready to analyze.
How Hashes are Identified
Cryptographic hashes have fixed sizes and standard character pools (usually hexadecimal or Base64 format). For example, MD5 hashes are always 128-bit values represented as 32 hex characters. SHA-256 hashes are always 256-bit represented as 64 hex characters. Password-hashing systems like **bcrypt** and **Argon2** include explicit format tags (e.g. $2y$ or $argon2id$) directly inside their string structures.
How to use the identifier
- Paste the hash value into the text box (leading and trailing spaces are automatically trimmed).
- Click Identify Hash.
- Inspect the matches table showing the list of matching algorithms, sorted by confidence.
