Free 3-Way Diff Viewer
Compare two or three versions of text side by side. Visualize additions, deletions, and conflicts with color highlighting.
Three-Way Diff Viewer
Compare two or three versions of text side-by-side. Color-coded diff with line numbers, unified format output, and stats.
Paste text into the panels above to see the diff.
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Frequently Asked Questions
What is 3-way diff?
Three-way diff compares a base version with two modified versions, helping identify conflicts like in git merges.
Does it show line numbers?
Yes, line numbers are shown for all panels for easy reference.
Is it free?
Yes, completely free.
Is my data safe with this tool?
Absolutely. The 3-Way Diff Viewer processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the 3-Way Diff Viewer work on mobile devices?
Yes, the 3-Way Diff Viewer is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the 3-Way Diff Viewer in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the 3-Way Diff Viewer?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The 3-Way Diff Viewer works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free 3-Way Diff Viewer
Free 3-Way Diff Viewer is a free, browser-based tool in our Utility Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.