Online JSON Viewer & Explorer

PureJSON Viewer lets you visualize JSON data in an interactive tree view. Paste your JSON, and instantly see the structure with syntax highlighting. All processing happens in your browser — your data never leaves your device.

Is my JSON data sent to any server?

No. PureJSON processes everything 100% client-side using your browser. No data is ever transmitted to any server.

Can I use PureJSON offline?

Yes! PureJSON is a Progressive Web App (PWA). Install it from your browser and use it without an internet connection.

What is the maximum JSON size supported?

PureJSON can handle JSON files up to several megabytes, limited only by your browser's memory.