JSON Tree Viewer – Free, Private & Fast
Free JSON tree viewer. Visualize in browser – no upload. Expand/collapse, explore hierarchy – instant.
JSON Input
Tree View
Enter valid JSON data to see the tree view
Frequently Asked Questions
How do I expand and collapse tree nodes?
Click on any node that has children (objects or arrays) to expand or collapse it. You can also use keyboard navigation for accessibility.
What do the different icons represent?
Each data type has a unique icon: cubes for objects, documents for arrays, keys for strings, hashtags for numbers, checkmarks for true, X for false/null.
Can I view large JSON files?
Yes, the tree viewer is optimized for performance and can handle large JSON documents. Large objects and arrays are collapsed by default to improve loading speed.
Is my data secure?
Absolutely! All processing happens locally in your browser. No data is sent to our servers, ensuring complete privacy and security.