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File checksum
Computes a fingerprint of the file so you can confirm a download arrived intact, or prove two files are identical without opening them.
How to use it
- Drop any file, of any type or size.
- Pick the algorithm, SHA-256 unless told otherwise.
- Compare the value with the one you were given.
Questions
Which one should I use?
SHA-256 for anything that matters. SHA-1 only when a site still publishes SHA-1 values for you to check against.
Does it upload the file?
No. It is read straight from your disk by the browser's own crypto engine.
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