📜 What is JavaScript Diff Tool?
The JavaScript Diff Tool is a free online utility that helps you compare two JavaScript code snippets and highlights their differences. Whether you're reviewing code changes, debugging, or checking code updates between versions, this tool offers a quick visual comparison right in your browser.
⚙️ Features
- ✅ Highlights added, removed, and unchanged lines
- ✅ Uses Google's
diff-match-patch
algorithm for high-accuracy diff - ✅ Works entirely in-browser — no server, no data sharing
- ✅ Supports multiline blocks and large JS files
📘 Example Use Cases
- 🔍 Review changes between two JavaScript versions
- 🧪 Debug different outputs caused by small changes
- 👨💻 Spot accidental deletions, syntax changes, or additions
🚀 How to Use
Paste your original and modified JavaScript code into the text areas, then click "Compare Code". The tool will highlight any differences in green (added), red (removed), or gray (unchanged).
Built for developers. Simple, fast, and secure.