CheckThisFile
Check and mark your files

CheckThisFile · Free · No account

Compare two files

Check whether two copies have exactly the same bytes, using SHA-256.

Your file stays in your browser.

Comparison is byte for byte. It does not locate changes or prove authorship or truth; even metadata can cause a difference.

PDF: up to 50 MiB and 499 pages. Comparison: up to 50 MiB per file.