About the Checksum Calculator
Verify that a download is genuine and undamaged by comparing its checksum with the one published by the developer. Paste the expected hash and FileStripe tells you instantly whether it matches.
Hashes are calculated locally, so you can safely check large ISO images, installers and confidential files.
How to use the Checksum Calculator
- Choose a file (or switch to text).
- All hashes are calculated.
- Paste an expected hash to verify it.
Features
- 6 algorithmsMD5, SHA-1, SHA-256, SHA-384, SHA-512, CRC32.
- VerifyAuto-match pasted hashes.
- Large filesHandles hundreds of MB.
- PrivateNothing uploaded.
Frequently asked questions
Which hash should I use?
SHA-256 is the modern standard. MD5 and SHA-1 are fine for detecting corruption but not secure against deliberate tampering.
Is the Checksum Calculator free?
Yes. The Checksum Calculator is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Checksum Calculator is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The Checksum Calculator works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.