Why Use This Tool?
Did the contract change? Which lines moved between two config versions? Did the editor actually make the edits? This difference checker compares two texts line by line and marks every removal in red and every addition in green.
The comparison uses the same longest-common-subsequence approach as professional diff tools, so moved and edited lines are matched intelligently rather than just compared positionally. Both texts stay on your device.
How It Works
- Paste the original text on the left field.
- Paste the changed version in the second field.
- Click compare — removed lines show −, added lines show +.
Frequently Asked Questions
How do I compare two texts for differences?
Paste the original in the first box and the new version in the second, then click compare. Every line is classified as unchanged, removed, or added.
What does the diff output mean?
Lines starting with − existed only in the original; lines with + exist only in the changed version; = lines are identical in both.
Is there a size limit?
Each text can be up to 500 lines — that covers most documents, config files, and code snippets while keeping the comparison instant.
Tips & Things to Watch
- Perfect for verifying edited contracts, policies, and config files.
- Trim whitespace first with the Remove Extra Spaces tool for cleaner diffs.
- The summary count above the output shows how big the change really is.