Search for a tool
Hash Identifier

Tool to identify a hash (hash fingerprint) automatically and recognize the algorithm(s) potentially used. Identifier/Analyzer for 350+ hashes online.

Results

Hash Identifier -

Tag(s) : Modern Cryptography, Informatics

Share
Share
dCode and more

dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!


Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!


Feedback and suggestions are welcome so that dCode offers the best 'Hash Identifier' tool for free! Thank you!

Hash Identifier

Hash Identifier

x

Answers to Questions (FAQ)

What is a Hash identifier? (Definition)

A hash identifier is a tool that allows you to recognize the type of hash from a list of known hash functions. Given an unknown hash, the identifier determines which hash function was likely used to generate it.

There are hundreds of hashing algorithms, the majority return a hash as a number, usually stored in hexadecimal format. But the length of this number, some additional characters or the format of the final string allows to recognize what type of algorithm was used.

How to use the Hash identifier?

Indicate the character string that serves as a fingerprint. Take care not to add unnecessary elements, such as a space or a stop at the end, as these irrelevant characters could confuse the detector.

Example: e9837d47b610ee29399831f917791a44 is a hash of the MD5 algorithm (32 hexadecimal characters)

Sometimes there are many other algorithms that have the same hash format, impossible to know which function was used without testing them all.

How to decrypt the Hash once identified?

By their nature, hashes cannot be decoded/hashed (this is one-way encryption). However, dCode offers tools for the most used hash types, which use dictionaries of hashes (rainbow tables) generated from the most common passwords.

See the dedicated pages: MD5, SHA-1, SHA256, etc.

How to does the hash identifier works?

The identifier compares the unknown hash to hash patterns generated by different hash functions. Depending on the length of the hash and the alphanumeric format, it can deduce which function most likely matches.

The identifier uses a database of over 400 hash algorithm formats called Haiti. This database was developed by Orange Cyberdefense here (MIT License) and maintained by noraj.

Source code

dCode retains ownership of the "Hash Identifier" source code. Any algorithm for the "Hash Identifier" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Hash Identifier" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Hash Identifier" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.

Cite dCode

The content of the page "Hash Identifier" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source. Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link: https://www.dcode.fr/hash-identifier
In a scientific article or book, the recommended bibliographic citation is: Hash Identifier on dCode.fr [online website], retrieved on 2025-04-26, https://www.dcode.fr/hash-identifier

Need Help ?

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!

Questions / Comments

Feedback and suggestions are welcome so that dCode offers the best 'Hash Identifier' tool for free! Thank you!


https://www.dcode.fr/hash-identifier
© 2025 dCode — The ultimate collection of tools for games, math, and puzzles.
 
Feedback