Text Diff Checker
Compare text versions by lines, words, or complete characters.
Plain-text result
Enter text to get started.
How to use Text Diff Checker
- Paste or type your input. You can also load the example below.
- Adjust the available options. Results update after you finish typing; for very large inputs, select Run.
- Review the result, then copy it or download it to your device.
How this tool works
Green marks additions and red marks removals. Line mode pairs edited lines and highlights changed words. Word and character requests over 300 KB per input use line mode; extremely complex comparisons report an error instead of incomplete results.
Input and output stay in the current page. Refreshing or closing the page clears them. For very large inputs, use Run to start processing; a task that takes too long is stopped so you can change the input.
Frequently asked questions
Does whitespace mode remove spaces inside a line?
No. It ignores only leading and trailing whitespace in line mode.
Does character mode split an emoji?
No. It compares complete grapheme clusters, including joined emoji and combining marks.