Diff Checker
Compare two texts and highlight differences instantly.
Original Text
Modified Text
0 additions
0 deletions
0 unchanged
0% changed
Compare two texts and highlight differences instantly.
Additions are highlighted in green with a green left border, and deletions are highlighted in red with a red left border. In split view, additions appear on the right and deletions on the left. In unified view, both are shown in a single column with + and - prefixes. Word-level and character-level changes are further highlighted with inline markers.
Yes. You can copy the contents of any text-based file and paste it into the comparison panels. This works for source code files, configuration files, CSV data, JSON, XML, HTML, and any other plain text format. The tool processes everything locally in your browser.
The tool handles texts up to several megabytes in size without issues. Performance may vary depending on your browser and device, but for most typical use cases such as comparing documents, code files, and data exports, you will not encounter any limits.
Absolutely. All text comparison happens entirely in your browser. Your data is never sent to any server, ensuring complete privacy and security for sensitive documents and code.
You can compare texts at three levels of granularity: character-level for precise inline changes, word-level for meaningful text differences, and line-level for structured documents and code. You can also choose between split view and unified view.