FREE CHECKSUM VERIFIER

Free Checksum Verifier

Compare a downloaded file with an official SHA checksum for free in your browser.

Files and checksums are never uploaded or stored.

  1. 1Choose file
  2. 2Calculate SHA
  3. 3Review result

1 · Choose file

File to verify

Processed on your device

Prepare one file and a checksum from a trusted publisher page.

Drop the file to verify here or use the button.
Selected files0 files
  • No files selected yet.

2 · Calculate SHA

Enter expected checksum

The 64, 96, or 128-character length identifies the SHA algorithm.

Detected automatically

3 · Review result

Verification result

Choose a file and enter a checksum to see both values and the result.

FREE CHECKSUM VERIFIER

How to verify a downloaded file checksum

Compare the publisher value with the bytes in the downloaded file.
1

Copy official value

Copy SHA-256, SHA-384, or SHA-512 from the publisher.

2

Add file and value

Choose the downloaded file and paste only its checksum.

3

Review the result

Check match or mismatch together with the calculated value.

SHA-2 · LOCAL

What a checksum can and cannot prove

File identity and file safety are different questions.

Byte identity

A match means the file bytes produce the expected value.

Trust the source

Obtain the expected checksum through an official channel.

Not a malware scan

A checksum does not prove the file is harmless or signed.

FREE CHECKSUM VERIFIER FAQ

Checksum verifier FAQ

Understand free verification, value formats, and result meaning.
1Is checksum verification free?

Yes. It is free without usage limits and the file is read only in your browser.

2Where should I get the checksum?

Use the SHA value on the official publisher page or in a signed notice.

3Are spaces and uppercase accepted?

Yes. Spaces, colons, an optional 0x prefix, and letter case are normalized.

4Does a match mean the file is safe?

No. It confirms byte equality, not publisher trust, a digital signature, or malware safety.

5What should I do after a mismatch?

Do not run the file. Download it again from the official source and compare with a fresh official checksum.