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Paste a hash to identify its likely type (MD5, SHA, bcrypt, NTLM & more).
Identification is based on length and format only — several algorithms can share a length, so results are best-guesses. Nothing is cracked or sent anywhere.
Hash Identifier inspects a hash’s length, character set, and prefix to list the most likely algorithms (MD5, SHA-1/256/512, NTLM, bcrypt, Argon2, crypt $1$/$5$/$6$, CRC, and more). It only analyzes patterns — no cracking — and runs entirely in your browser.
Paste a hash and find out what it probably is. This identifier analyzes the length, character set, and any prefix of a hash to list the most likely algorithms — MD5, SHA-1, SHA-256/512, NTLM, bcrypt, Argon2, the Unix crypt family ($1$/$5$/$6$), CRC, and more. It’s a fast first step for CTFs, pentesting write-ups, log analysis, and figuring out how a password was stored. It only inspects patterns (it never cracks or reverses anything), and everything runs locally in your browser.
Hash Identifier provides a fast, client-side way to determine the likely algorithm of an unknown hash by analyzing its length, character set, and prefix. Because it runs entirely within your browser and focuses purely on structural pattern analysis rather than cracking, it offers a secure and private initial step for security tasks.
Good to know: This tool only identifies hash types through pattern analysis and does not perform password cracking or reversing.
Learn how to quickly identify the likely cryptographic algorithm of any hash using pattern analysis.
Open the Hash Identifier tool
Navigate to the Hash Identifier page in your browser to begin analyzing your unknown hash.
Paste your hash string
Paste the complete hash string into the input field. The tool operates entirely locally in your browser for privacy.
Review the analyzed algorithm results
Inspect the automatically generated list of likely algorithms, such as MD5, SHA-256, NTLM, or bcrypt, based on the hash's length, character set, and prefix.
Estimated time: PT1M
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