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Interactive Diff Checker

Developer

Compare two blocks of text and highlight differences line by line.

ttb run diff-checker
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How to Use Diff Checker

Paste or type text into the two editor panes (Original and Modified). The tool instantly highlights differences line by line — additions in green, deletions in red, and modifications in yellow. Toggle between inline and side-by-side views. Perfect for code reviews, document comparisons, and finding unintended changes.

1

Enter your parameters

Configure the inputs for the Diff Checker according to your specific needs.

2

View real-time results

The utility instantly processes your request and displays the calculated outputs directly in your browser.

3

Copy or Download

Click the copy icon next to the final output to instantly grab the result, or export it if applicable.

Frequently Asked Questions

What algorithm does it use?+
The tool uses a standard diff algorithm similar to Unix diff and Git, comparing text line by line to identify the minimum set of changes needed to transform the original into the modified version.
Can I compare files instead of text?+
Currently, you paste text directly into the editors. To compare files, open them in a text editor, copy the contents, and paste them into the two panes.
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Free Online Diff Checker | Best Developer Tool | TinyToolbox