Text Diff / Compare
Text Compare online for free with Tool Cloud. Compare two texts and highlight differences in a unified diff format.
Free online Diff Checker
Use Text Diff / Compare directly in your browser. Compare two texts and highlight differences in a unified diff format
How to use Diff Checker
- 1
Paste or type your input
Enter your text or data in the input box.
- 2
Pick your options
Choose any settings the tool offers. The result updates instantly.
- 3
Copy the result
Use the copy button to copy the output. Nothing is uploaded to a server.
Supported formats
HTML is the markup language that structures every web page.
Frequently asked questions
How do I use Text Diff / Compare?
Enter your text or data in the input box. Choose any settings the tool offers. The result updates instantly. Use the copy button to copy the output. Nothing is uploaded to a server.
Is Diff Checker free?
Yes, it is completely free with no limits and no sign-up.
Is my data uploaded anywhere?
No. This tool runs entirely in your browser, so your text and data never leave your device.
Fast, private and built for real work
Everything runs on our servers, so it works the same on any device.
Lightning fast
Files are processed in seconds by a dedicated worker queue, with live progress while you wait.
High quality output
Professional-grade engines like FFmpeg and Pillow keep your output crisp and faithful.
Secure & private
Uploads are only visible to you and are deleted automatically after processing.