Please list your hashes below...

Please input the SHA1 hashes that you would like to look up. NOTE that the space character is replaced with [space].




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HashKiller.co.uk is a hash lookup service. This allows you to input an SHA1 hash and search for its corresponding plaintext ("found") in our database of already-cracked hashes.

It's like having your own massive password-cracking cluster - but with immediate results!

We have been building our hash database since August 2007.

Note that we do not use terms like "decrypted", "dehashed", or "reversed" - hashes can only be looked up quickly after they've been cracked the hard way.

In other words, we are not cracking your hash in realtime - we're just caching the hard work of many cracking enthusiasts over the years.

Output Formats:

  • Found: $hash[:$salt] $type $pass
  • Not found: $hash[:$salt] [No Match]
  • Invalid: $hash [Invalid]


The SHA1 lookup results will be displayed in this box.
Please use the textbox above to specify the hashes you want cracked.

In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as a hexadecimal number, 40 digits long. It was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard. Since 2005 SHA-1 has not been considered secure against well-funded opponents, and since 2010 many organizations have recommended its replacement by SHA-2 or SHA-3. Microsoft, Google, Apple and Mozilla have all announced that their respective browsers will stop accepting SHA-1 SSL certificates by 2017.