Compare two texts
Paste two versions and see every line that was added or removed. It's safe for contracts, code and config files, because nothing leaves your browser.
Deskshed, our desktop app for Windows. It has real save dialogs, works offline, and adds whole-folder jobs for photos and PDFs. Pay once: $5 for the first 1,000 buyers, then $9.
See DeskshedDiff checker at a glance
- Cost
- Free, with no watermark
- Account
- None needed
- Your data
- Stays in your browser. How to check
- You get
- A line-by-line comparison
- Limits
- Up to 6,000 lines per text
How to use it
Paste both versions
The original on the left, the changed one on the right.
Press Compare
Tick Ignore spacing if only indents and spaces have changed.
Read the result
Added lines are marked with a plus, removed lines with a minus.
Diff checker: common questions
Is it safe to paste a contract or private code?
The comparison runs in the page and our security policy stops the page from sending data to other servers. Your own computer and browser extensions are outside our control, though. Extensions can read what's on any page, so use a clean browser profile for very sensitive text.
Why is a changed line shown as one removed and one added?
The comparison works on whole lines. If one word in a line changes, the old line shows as removed and the new one as added.
Can I compare Word documents or PDFs?
Not directly. Copy the text out of each one and paste it here. Formatting changes won't show.