Text Diff Checker
Compare two texts side by side and see the differences highlighted. Added lines in green, removed lines in red.
How to Use the Text Diff Checker
- Paste the original text — Enter the first version of your text in the left textarea.
- Paste the modified text — Enter the second version in the right textarea.
- Click Compare — The tool analyzes both texts line by line and highlights the differences.
- Review results — Green lines are additions, red lines are removals, and plain lines are unchanged. Check the stats for a summary.
About Text Diff Checker
The Text Diff Checker compares two blocks of text and highlights the differences between them. This is essential for writers reviewing edits, developers comparing code versions, translators checking changes, and anyone who needs to identify exactly what changed between two versions of a document.
The tool performs a line-by-line comparison similar to the Unix diff command or Git diff. Lines that exist only in the original are marked as removed (red), lines that exist only in the modified version are marked as added (green), and matching lines are displayed without highlighting. The summary statistics give you a quick overview of the scope of changes between the two texts.
Frequently Asked Questions
The diff checker compares both texts line by line. It identifies lines that are unique to the original (removed), unique to the modified version (added), and lines that appear in both (unchanged). The results are color-coded for easy visual scanning.
Green lines (prefixed with +) are additions that appear only in the modified text. Red lines (prefixed with -) are removals that appear only in the original text. Lines without color highlighting are unchanged between the two versions.
Yes, this tool works with any plain text including source code in any programming language, configuration files, HTML, CSS, JSON, XML, and more. The monospace font in the output preserves code formatting.