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File Checksum Calculator (SHA-256, SHA-1, MD5)

Calculate SHA-256, SHA-512, SHA-1 and MD5 checksums of any file in your browser and verify downloads against the published hash.

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Choose a file to hashor drag & drop here · stays on your device

Checksums

What is the File Checksum Calculator?

Software download pages often publish a SHA-256 or MD5 checksum so you can confirm the file you downloaded is exactly the original – not corrupted or tampered with. Choose a file here to calculate its SHA-256, SHA-512, SHA-1 and MD5 hashes, then paste the published value to verify it automatically.

Your file is read locally and never uploaded – even large ISO files work (limited by your device memory).

How to use the File Checksum Calculator

  1. Choose or drag a file.
  2. Wait for the hashes to be calculated.
  3. Paste the expected checksum to see if it matches.

Which hash should I use?

SHA-256 is the modern standard. MD5 and SHA-1 are still used for quick integrity checks but are not secure against deliberate tampering.

This File Checksum Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.

Last updated: · By NodifyTech

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