About the Online Text Diff Checker
Compare two pieces of text side-by-side to highlight differences, additions, and deletions. Perfect for reviewing code changes, comparing document versions, and checking formatting.
How to Use
- 1
Paste the original text into the left text box.
- 2
Paste the modified text into the right text box.
- 3
Observe the highlighted additions (green) and deletions (red) in the comparison view.
- 4
Review line numbers and character differences.
Key Features
- Side-by-side text difference comparison
- Character-level diff highlighting for precision comparison
- Synchronized scroll between panels
- Zero server uploads: runs entirely in your browser
- Fast clear and reset options
Frequently Asked Questions
Is my text data secure?
Yes. The difference calculation uses JavaScript libraries running locally on your computer. Your text is never transmitted over the internet.
Does it support code formatting?
It compares any plain text or code block, highlighting exact difference coordinates, but does not provide IDE code formatting.