Text Diff / Compare

Compare two texts side-by-side and see the differences highlighted. Free online diff tool.

How to use: Paste two texts side by side to see the differences highlighted.

How to Compare Text Online

Paste the first text (original) in the left editor and the second text (modified) in the right editor. The tool instantly computes the difference and highlights all changes. Green highlights show additions, red highlights show deletions, and yellow marks show modifications within changed lines.

Text Comparison Use Cases

Compare code versions before committing, check document revisions, verify configuration changes, compare API responses, or find differences between any two versions of text. This tool is essential for code review, debugging, and content editing workflows.

Frequently Asked Questions

How do I compare two texts online?
Paste the original text in the left panel and the modified text in the right panel. The tool highlights all differences — added lines in green, removed lines in red, and changed portions within lines.
Can I compare code with this tool?
Yes. The diff tool works with any plain text including source code, configuration files, documentation, and data files. It identifies changes at the line level and highlights specific character differences.
What is a diff?
A diff (short for difference) is a comparison between two versions of text showing what was added, removed, or changed. Diffs are fundamental to version control systems like Git and are used in code review processes.