SHA-256 / SHA-1 Hash Generator

Generate SHA-256 or SHA-1 hash from any text. Uses the Web Crypto API. All processing in your browser.

Hash Output:

 
 
 
  
  
 
 
What are SHA-256 and SHA-1?
 
SHA (Secure Hash Algorithm) produces a fixed-size hash from any input. SHA-256 outputs 64 hex characters; SHA-1 outputs 40. Both are one-way—you cannot reverse the hash to get the original input.
 
What is it used for?
 
     
  • File verification: Check downloads, integrity of backups
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  • Digital signatures: SHA-256 is used in TLS/SSL certificates
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  • Git: Commit IDs use SHA-1
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  • Blockchain: SHA-256 is used in Bitcoin
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How it works
 
Uses the Web Crypto API in your browser. No data is sent to any server. SHA-256 is recommended; SHA-1 is deprecated for security but still used in legacy systems.
 
 
 
 

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