SHA-1 Hash Generator

Enter the plain or Cipher Text:

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Result of SHA1 Generated Hash:

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SHA-1 HASH Generator Online

SHA-1 hash function generator generates a SHA1 hash which can be used as secure 40 hexadecimal (160 bit) password or used as Key to protect important data such as credit cards, private information and much more.

It was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard.

It will generate 40 characters of SHA1 hash string and it can not be reversible.

How to Generate SHA1 Hash?

  • Step 1: Enter the Plain or Cypher Text.
  • Step 2: Click on Generate SHA1 HASH Online.
  • Step 3: Use Copy to Clipboard functionality to copy the generated SHA1 hash.

What is SHA-1 HASH?

In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographically broken but still widely used 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; as of 2010 many organizations have recommended its replacement. NIST formally deprecated use of SHA-1 in 2011 and disallowed its use for digital signatures in 2013. As of 2020, chosen-prefix attacks against SHA-1 are practical. As such, it is recommended to remove SHA-1 from products as soon as possible and instead use SHA-2 or SHA-3. Replacing SHA-1 is urgent where it is used for digital signatures.

All major web browser vendors ceased acceptance of SHA-1 SSL certificates in 2017. In February 2017, CWI Amsterdam and Google announced they had performed a collision attack against SHA-1, publishing two dissimilar PDF files which produced the same SHA-1 hash. However, SHA-1 is still secure for HMAC.

Microsoft has discontinued SHA-1 code signing support for Windows Update on August 7, 2020.

To learn more about SHA1 Hash, please visit SHA1 Hash Functions.

Example of SHA1 Hash

Plain data Try it.


Output: Generated SHA1 Hash


For Advanced Users

External URL

Load External URL in Browser URL like this https://format.asia/sha1-hash-generator?url=external-url

Data as Parameter

Load Data in Browser URL input like this https://format.asia/sha1-hash-generator?input=inputdata