Review source changes with precise line numbers and whitespace controls. Everything runs locally, with no account required.
40+ TEXT FORMATS
Text files ≤ 10 MB · first 2,000 lines · result ≤ 10,000 differences
Review source changes with precise line numbers and whitespace controls.
Content is processed in your browser · Not sent to the application server · Free to use
ExactDiff preserves line numbers and uses deterministic text comparison. Optional normalization can ignore trailing spaces without changing the source.
The comparison is deterministic: the same files and settings produce the same classification. File contents remain inside the current browser session.
No. Source text is compared only and is never run.
Any text-based language can be compared; the initial release focuses on accurate line changes rather than syntax highlighting.
Runs in your browser
Content is processed in your browser and not sent to the application server
Works without an account