File checksum verifier

Verify a file against a checksum, right in your browser.

Algorithm

Expected checksum (optional)

Files are read and hashed in your browser — nothing is uploaded.

How it works

Choose a file

Select the downloaded file you want to check.

Read its hash

The tool computes the file’s SHA hash locally, without uploading it.

Compare

Paste the expected checksum to confirm they match exactly.

Frequent questions

Why verify a checksum?

A matching checksum confirms a download arrived intact and was not corrupted or tampered with. A mismatch means the file differs from the one the publisher hashed.

Is my file uploaded to check it?

No. The file is read and hashed in your browser, so even large or private files never leave your device.

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