SHA1 Hash Generator

Enter text here to generate online SHA-1 hash of any string:

What is sha1?

SHA-1 or Secure Hash Algorithm 1 is one of several cryptographic hash functions that takes input and produces a 160-bit (20-byte) hash value. This message digest is usually then rendered as a hexadecimal number which is 40 digits long.

SHA-1 is most often used to verify that a file has been unaltered. This is done by producing a checksum before the file has been transmitted, and then again once it reaches its destination.

The SHA1 hash is NOT encryption. This is just a fingerprint of this entry. However, this is a one-way transaction, and therefore it is almost impossible to reverse the SHA1 hash to get the original string. SHA1 hash is composed of 40 hexadecimal characters. Enter a word or some text in the sha1 online form above to know the corresponding SHA1 hash.

How to generate SHA-1 hash online?

Using our tool you need just paste your TEXT or file to the textarea above and click to the button "Generate" and you will get sha1 hash.

How do I get the SHA-1 hash of a file?

You can upload the contents of your file to our tool or click on the "browse" button in the editor and select your file, and then you need to click on the "Generate" button to get the SHA-1 hash from your file.

How long is SHA-1 string?

SHA1 produces a 160-bit (20-byte) hash value, usually displayed as a 40-digit hexadecimal number.

Example

test string

661295c9cbf9d6b2f6428414504a8deed3020641