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Text Diff Checker
Compare two texts side by side with highlighted additions, deletions, and changes.
+3 added-2 removed1 unchanged
-The quick brown fox jumps over the lazy dog.
+The quick brown fox leaps over the lazy dog.
-This is the original version of the text.
+This is the modified version of the text.
It has three lines in total.
+A new line was added.
How it works
- 1Paste original textEnter the original or 'before' text in the left panel.
- 2Paste modified textEnter the changed or 'after' text in the right panel.
- 3Review differencesLines are highlighted: green for additions, red for deletions, unchanged lines are neutral.
Frequently asked questions
How are differences shown?
Line-by-line comparison. Added lines are highlighted in green, removed lines in red. Unchanged lines appear without highlighting.
Is this a character-level diff?
No - this is a line-level diff. Each line is compared as a whole. For code, line-level diffs are typically more useful than character-level.
Can I compare code snippets?
Yes. Paste code in both panels. The diff works on any text - prose, code, config files, etc.