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CodexValley

Hash Generator

Available

Create SHA-256, SHA-384, SHA-512 or SHA-1 hashes of text in your browser.

Use the tool

Everything runs in your browser. Your text is not uploaded or stored.

About this tool

Create a hash, a short fingerprint, of any text with SHA-256, SHA-384, SHA-512 or SHA-1. Hashing runs in your browser with the built-in Web Crypto functions.

How it works

  • The text is turned into UTF-8 bytes and passed through the chosen algorithm.
  • The result is shown as hexadecimal, in lowercase or uppercase.
  • The same text always gives the same hash, and a tiny change gives a completely different one.

Common questions

Can a hash be reversed?

No. A hash cannot be turned back into the text. Weak or common passwords can still be guessed, so never store passwords as plain SHA hashes.

Why is there no MD5?

MD5 is broken for security use and not available in the browser's crypto functions. SHA-256 is the usual choice today.

Your text is processed in your browser and is never uploaded.

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