Diffr is a tool for comparing text files. It was created out of
dissatisfaction with existing diffing tools (and a certain amount of
paranoia because virtually every diffing tool has to send your data to
their server to compare). In Diffr, all the work happens locally and your
data never leaves the browser.
Fully local diffing removes the need for a network connection — once the
app is loaded, it will continue to work even when you're offline.
- Share your diffs with others by just copying the current URL.
Drag&Drop files from your filesystem into the editor to compare
- Full support for dark and light mode.
The editor which Diffr uses under the hood does not currently support
mobile devices running Android. For that reason, Diffr can not support
those targets either.
Bringing the editor and diffing experience entirely into the browser
requires quite some bandwidth, which means that the whole site is pretty
heavyweight (roughly 3 MB). This does not hurt past initial load
since the app is cached and not loaded again on further visits, but the
initial load may be an issue for users with an unstable connection or a
limited data plan.