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File checksum

Calculate SHA-256 and compare with the expected amount.

Select files

or drag and drop here

Any format · up to 50 MB per file 100 MB total

Help and information

How to use

Obtain a verification code for the file contents and compare it with the code from the sender.

  1. Choose suitable files.
  2. Adjust the result if needed.
  3. Click “Calculate SHA-256” and download the finished file.
Read the full guide
Frequently asked questions
Where is the processing performed?
The tool runs on your device, right in your browser. Files and entered text for this operation are not sent to the server.
What to do if the result is not suitable?
Take the original file or text and try other settings in the steps above. Compare the new result with the previous one. The original files on your device remain unchanged.
Features and limits

SHA-256 is calculated from the file contents. Renaming a file or changing its filesystem date does not change the hash. Editing embedded metadata changes the file bytes and its hash. Matching hashes help verify a copy, but do not guarantee that it is free of viruses.

* → .txt

50 MB / file; 100 MB in total; 20 files.

Processing in the browser. No files are sent to the server for this operation.

Open checksum.txt. There will be a file code, and if you entered the expected code, will it match? If the codes are different, check whether the file is selected and whether the correct code is used for comparison.