Compute hashes of two files in parallel and report whether they are byte-identical. Plus first-difference offset.
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
Drop two files (file A and file B).
SHA-256 of each is computed in parallel; the first byte where they differ is reported.
View the report or download a JSON integrity report.
0 bytes uploaded. File Integrity Monitor runs entirely in your browser. Files, passwords, and PGP private keys never leave your device. No analytics fire during processing — only after you opt-in to dashboard audit logging.
Hashes are streamed; the diff is reported on the first 100 KB after divergence.
This is a byte-level integrity check. For semantic diff, use the PDF Diff tool in the PDF suite.