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Hash Generator

SHA-256, SHA-1, SHA-384 and SHA-512 of any text, worked out in your browser.

FreeRuns in your browser

About the Hash Generator

Type or paste text and see its checksum in four algorithms at once. It is the same calculation a server does when it checks that a file or a message has not been altered, done here by the browser's own crypto, so the text never leaves the tab.

How to use it

  1. 1Paste the text you want a hash of.
  2. 2Copy the algorithm you need, in lower or upper case.

Questions

Can I get the text back from a hash?

No. A hash is one way by design: it identifies the text without carrying it. That is why hashes are used to check that something has not changed, and why a leaked hash is not the same as a leaked password.

Where is MD5?

Browsers do not implement it, and it has been broken for years: two different files can be made to share an MD5. SHA-256 is the safe default for anything new.

Is my text uploaded or stored?

No. The tool runs in this browser tab. What you paste is never sent to KuponGuru, and it is gone when you close the tab.

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