Text Compare & Diff Checker
Compare two texts side-by-side and instantly see the differences highlighted in color. Perfect for comparing code, documents, or any text content.
- Texts never leave your device
- No server upload required
- Works completely offline
- No login or signup needed
How It Works
Paste or type your texts into the two text areas and click 'Compare'. The tool uses the industry-standard diff-match-patch algorithm (by Google) to analyze the differences. Deleted text (present in Text 1 but not in Text 2) is highlighted in red, while added text (present in Text 2 but not in Text 1) is highlighted in green. You can choose between side-by-side or inline comparison views. All processing happens in your browser — your texts are never sent to any server.
Frequently Asked Questions
How does text comparison work?
The tool uses a diff algorithm to compare texts character by character or word by word, then highlights differences in color.
What do the colors mean?
Red indicates text that was deleted (in Text 1 but not in Text 2), and green indicates text that was added (in Text 2 but not in Text 1).
Can I compare code?
Yes! This tool works great for comparing code snippets, configuration files, or any text-based content.
Is there a size limit?
The tool can handle reasonably large texts, but very large files (over 1MB) may slow down depending on your browser.
Can I ignore whitespace or case?
Yes, the tool includes options to ignore whitespace differences and case sensitivity.