IconVault's JSON Tree Viewer turns pasted or uploaded JSON into an interactive collapsible tree. Nodes expand and collapse, nested arrays and objects stay readable at a glance, and you can search keys and values with match highlighting, so huge API responses and config files stop being walls of text.

Every tree node is clickable to copy its JSONPath for use in code, and the panel shows key count, maximum depth and file size so you know what you are working with. Parsing, search and rendering all happen fully in your browser with nothing uploaded. It is free to try (heavy repeated use may ask for Pro), and you can copy the pretty-printed JSON back out with one click.