JSON Editor & Diff
Format, Validate, Repair JSON
Only for Mac
Free
Mac
Native macOS JSON editor for formatting, validation, repair, and side-by-side diff with JSONPath results. Built for fast API debugging workflows.
Edit, validate, repair, and compare JSON faster on macOS.
JSON Editor & Diff is a native macOS app for developers who work with API responses, config files, and large JSON documents every day. Keep two documents open side by side, clean them up instantly, and spot differences with clear JSONPath-based output.
What you can do:
• Edit JSON in dual panes: Source and Destination
• Validate JSON in real time while you type
• Format and minify JSON with normalized output
• Repair broken JSON (removes comments and trailing commas)
• Compare two JSON documents with path-based diffs
• Browse structure in Tree view
• Search independently in each editor with current/total match count
• Use keyboard shortcuts to format, minify, and repair the active editor
Built for focused desktop workflows:
• Native SwiftUI + AppKit text editing
• Fast, responsive editing for everyday development tasks
• Clean interface designed for debugging and data inspection
If you frequently inspect payloads, debug APIs, or review JSON changes before shipping, JSON Editor & Diff helps you work with confidence and speed.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What’s New (v1.1.0)
- Open `.json` files directly from Finder with JSON Editor.
- Added automatic JSON repair + formatting when you paste content.
- Added a new toggle to quickly show or hide the Destination editor.
- Destination editor now hides by default when opening a JSON file, so you can focus on Source first.
- Improved window/document handling so each window keeps its own editing state.
- General polish and stability improvements around file opening and editor behavior.
The developer, Phanith Ny, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Phanith Ny
- Size
- 1.4 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 13.0 or later.
- Mac
Requires macOS 13.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Phanith NY