Compare two JavaScript files

Compare JavaScript code with full syntax highlighting and Prettier auto-formatting. Perfect for reviewing code changes, comparing function implementations, or spotting bugs between versions. Supports ES6+, JSX, and modern JavaScript features.

Features

• JavaScript & JSX syntax highlighting
• Auto-format with Prettier (Babel parser)
• ES6+ and modern JS support
• Side-by-side and inline views
• Ignore whitespace for style changes
• Share JS diff via URL

Frequently asked questions

Does it support JSX?

Yes — the JavaScript mode handles JSX syntax out of the box.

Can I format before comparing?

Yes — press Ctrl+Shift+F to auto-format both files with Prettier, eliminating formatting noise.

Does it support ES modules?

Yes. Import/export syntax, arrow functions, async/await, and all modern JS features are highlighted.

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