Project Diff
Compare two project directories or multiple files to see the differences.
Original Source
Upload the original project files or folder.
Supports single files, multiple files, or entire directories.
Modified Source
Upload the modified project files or folder.
Supports single files, multiple files, or entire directories.
About Project Diff
The Project Diff Viewer is a fast and secure developer utility that allows you to easily compare entire folders or multiple files. It supports massive scale, handling thousands of files instantly. All processing happens entirely in your browser, ensuring your source code remains private and secure.
How to Use
Real-World Examples
Audit Node.js Packages
Download a node module from two different versions and drop them into the panels to see exactly what changed in the source code.
Best Practices
- Ideal for reviewing massive changes before committing.
- Great for auditing third-party code modifications.
- Use the 'Ignore Whitespace' option when comparing code formatted with different linters.
Pro Tips
You can export a standalone HTML report to share with your team.
Use the arrow keys to quickly navigate the file explorer tree.
Frequently Asked Questions
Is this Project Diff tool free?
Yes, all tools on ToolMono are 100% free to use with no limits.
Is my source code secure?
Absolutely. All file reading and comparison is done entirely in your browser's memory. Your source code is never transmitted over the internet.
Can it handle huge projects?
Yes! The tool uses advanced lazy-chunking and asynchronous diffing to handle projects containing thousands of files smoothly.
Keyboard Shortcuts
| Shortcut | Action |
|---|---|
ArrowUpArrowDown | Navigate up and down the file explorer tree |
ArrowLeftArrowRight | Collapse and expand folders |
Enter | Select the currently focused file |
AltArrowUp | Jump to previous changed file in the Code Viewer |
AltArrowDown | Jump to next changed file in the Code Viewer |
Security & Privacy
Everything is processed strictly locally in your browser using the File System API. No source code is ever uploaded to a server.