CodeCraft

JSON Visualizer

Render JSON as an interactive collapsible tree. Click nodes to expand or collapse. Colors highlight different data types.

? Collapsible Tree? Color-coded Types? 100% Local

JSON Input

Visualization

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How to Use

  1. Paste your JSON data into the left input box.
  2. Click Visualize. The right panel will render an interactive tree view.
  3. Click any node with a ? arrow to expand it; click ? to collapse.
  4. Use the colors to quickly identify data types: pink = key, green = string, blue = number, purple = boolean, gray = null.
  5. The node count in the top right shows the total number of nodes, useful for estimating data size.

About JSON Tree Visualizer

JSON Visualizer renders JSON data as an interactive tree structure, making complex nested data immediately readable. The tree view lets you collapse/expand nodes, quickly locate specific fields, and understand data hierarchy. Particularly valuable when debugging API responses. Displays array lengths and key counts at each node. All rendering runs locally.

Frequently Asked Questions

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