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File Checksum Calculator

Drop one or many files and get MD5, SHA-1, SHA-256 and SHA-512 checksums with progress bars. Export a list that sha256sum can check later.

  • Free
  • No sign-up
  • Works on phone and computer

How to get a file's checksum

  1. Pick the hash types.
  2. Drop your files into the box.
  3. Copy or download the checksum list.

About this tool

Drop in files of any size and watch each one being read. You get the checksums you picked and a list in the same layout that sha256sum and md5sum use, so you can verify the files again later or on another computer. Files are read in pieces on your device and are never uploaded.

Common questions

Is there a size limit?

No fixed limit. Files are read in small pieces, so a multi-gigabyte file works, though it takes longer.

How do I check the list later?

Save it next to the files and run sha256sum -c on it, or use the Hash Checker here.

Is it free to use?

Yes. There's no sign-up, and you can use it as often as you like.

Is my text uploaded anywhere?

No. This tool runs inside your browser, so what you enter stays on your device.

Do I need to install anything?

No. It works in your browser on a computer or a phone.

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