PDF Mikata

Check a File's Hash (SHA-256)

Check that a downloaded file is intact.

Your files are never uploaded. Everything is processed on this device.

  1. 1Choose a file
  2. 2Read the hash
  3. 3Compare

The file is checked on this device. Nothing is sent anywhere.

Done

🔒 Your files are never sent to an external server. Everything is processed safely inside this browser.

How to use

  1. Tap "Choose a file" and select the file to check.
  2. Hashes such as SHA-256 appear.
  3. Paste the publisher's hash to see whether it matches.

How it works

  • A hash is a short fingerprint-like string calculated from the contents of a file.
  • Change even one character and the hash becomes completely different.

Notes

  • MD5 is not supported. SHA-256, SHA-1 and SHA-512 are used.
  • Very large files may not be checked if the device runs out of memory.

FAQ

Are my files uploaded anywhere?

No. Everything is processed inside the browser on your device.

If the hashes match, is the file safe?

It only shows the contents are identical. A match with the publisher's value is a sign the file was not damaged or altered on the way.

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Guides for this tool

How to Check a File's SHA-256 (Free)How to Verify a Downloaded FileWhat Is a Hash?SHA-256 vs. SHA-1How to Tell Whether Two Files Are IdenticalIs My File Uploaded?Tips for Checking Large Files

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