Say goodbye to online JSON formatters.

JSON Viewer is a native Mac app to visualize, validate and format JSON datasets in a clean and snappy interface.

Download
Version 1.2.2
Requires macOS 10.14 or later
Visualize
Easily read JSON with syntax highlighting in a familiar color scheme
Interact
Navigate through large datasets by expanding and collapsing nodes
Format
Prettify or minify JSON in a single click
Validate
Spot invalid syntax with automatic error highlighting

Really fast. And really free.

100% free
No subscription or in-app purchases
Lightweight
Less than 5 MB download size
Works offline
Everything is processed on your Mac
Respects your privacy
No tracking or data mining
Native Mac UI
Built with Swift and Cocoa
Dark mode support
Follows your system appearance
Download
Version 1.2.2
Requires macOS 10.14 or later