Enter text in both panels above to see the differences highlighted. You can compare code, text, or any content.
Split view: Side-by-side comparison of original and modified text.
Inline view: Changes shown in sequence with + and - markers.
Unified view: Combined view with line numbers from both versions.
This diff tool compares two text blocks and highlights the differences between them. It's useful for comparing code, configuration files, or any text content to quickly identify what has changed.
According to GitHub's Octoverse report, over 100 million developers use diff-based code review workflows daily. Studies from SmartBear show that systematic code review with diff tools catches up to 60% of defects before they reach production.
Code Changes
Compare code versions to see what changed
Config Files
Review configuration file updates
Documentation
Find changes in documentation
Debugging
Debug text transformations
How do I compare two texts?
Paste your original text in the left panel and the modified text in the right panel. The tool highlights additions in green and deletions in red.
What's the difference between side-by-side and inline view?
Side-by-side shows both texts in parallel columns. Inline view shows changes in a single document with additions and deletions marked.
Can I compare code files?
Yes! The diff checker works great for code comparison. Paste code from any programming language - the tool handles syntax highlighting.
Is my text data private?
Yes, all comparison happens in your browser. Your text is never sent to any server.
Privacy First
All comparison happens in your browser. Your text never leaves your device.