What Is a JSON Tree Viewer?
Raw JSON text is hard to scan once a document gets past a few dozen lines, everything is flat, and finding one value means reading through brackets and indentation by eye. A json tree viewer turns that same document into a navigable structure instead, where every object and array can be collapsed down to just its key or item count. That makes it possible to get a sense of a large document's shape at a glance, then drill into exactly the branch you care about, without scrolling past everything else.
How to Use This Tool
Paste JSON into the left panel and the tree renders on the right as you type, no button to press. Click the arrow beside any object or array to expand or collapse that branch, or use Expand All and Collapse All in the toolbar to do it everywhere at once. If the JSON is invalid, the exact parse error appears in the tree panel instead of a result, so you always know whether you are looking at real output or a syntax problem.
How the Copy-Path Feature Works
Hovering over any node in the tree reveals a small copy icon. Clicking it copies that value's exact JSONPath, using the same dot and bracket-index notation a tool like jsonpath-tester expects, for example $.store.books[0].title. This is the fastest way to go from visually spotting a value in a large document to having the precise path you need for a query, a script, or documentation, without manually counting array indices or nesting levels by hand.
Reading Large or Deeply Nested JSON
Any branch nested more than two levels deep starts collapsed automatically the moment valid JSON is parsed, so pasting a large document does not immediately dump thousands of lines onto the screen. Typing into the search box temporarily expands the entire tree so every matching key or value is visible and highlighted, and clearing the search restores the default collapsed view. A live stats line also reports the total key count, array count, and maximum nesting depth, useful context for judging how big or how deeply structured a document actually is before you start digging through it.
A Free JSON Viewer Online
As a json viewer online and json tree online explorer, this is a collapsible json viewer and json path copy tool in one, a json viewer free with no signup. Use it as an interactive json viewer, a full json explorer, or a way to view json structure online before writing a single query against it.