File Checksum Calculator
Make sure a download arrived intact and is the file the publisher released. Choose the file, paste the checksum from the download page, and see straight away whether they match.
How to verify a file checksum
- 1Choose the file you downloaded.
- 2Paste the checksum shown on the download page.
- 3Read the result: a match means the file is intact.
Any algorithm
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 are all calculated, and the expected checksum is compared with each of them, so you don't need to know which one the publisher used.
Forgiving comparison
Uppercase or lowercase and spaces don't matter, so a checksum copied from any page works.
Big files, privately
Files up to 2 GB are read in your browser. Nothing is uploaded, so this works for private files and on slow connections.
Frequently asked questions
- Is anything sent to a server?
- No. Everything is computed in your browser and nothing leaves your device.
- What does a mismatch mean?
- The file was damaged in transit, the download was incomplete, or it isn't the file the publisher released. Download it again from the official source.
- Which checksum should I trust?
- SHA-256 or SHA-512 where available; MD5 and SHA-1 catch accidental damage but not deliberate tampering.