Diff Checker
Compare two texts side by side and find differences instantly. Free online text diff tool.
Free Online Text Compare & Difference Finder
Paste two blocks of text side by side and instantly see what changed. Highlights additions, deletions, and modifications line by line. Works for code, documents, config files, and any plain text content.
How to Compare Two Texts
- Paste the original text in the left panel
- Paste the modified text in the right panel
- Differences are highlighted automatically — green for additions, red for deletions
Common Use Cases
Compare code before and after refactoring, check JSON or YAML config changes, verify translation updates, or review document revisions. All processing happens in your browser with no data sent to any server.