Text Diff Checker
Compare two blocks of text and instantly see additions, deletions and unchanged lines. Switch between side-by-side and inline views, all processed privately in your browser.
Spot every change at a glance
Paste an original and a changed version to get a colour-coded comparison: additions in green, removals in red. The side-by-side view aligns lines so you can scan structural edits, while the inline view highlights word-level changes within a paragraph.
Great for code, prose and config
Review pull-request snippets, proofread document revisions, or compare two configuration files without a git client. An ignore-case option smooths over trivial differences so you focus on what matters.
Private by design
Your text never leaves the page. The diff is computed locally using a Myers-style line and word diff algorithm, so it works offline and keeps confidential content on your machine.
How to diff checker
- Paste the original text on the left.
- Paste the changed text on the right.
- Choose side-by-side or inline view.
- Read the highlighted additions and removals.