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Paste JSON and explore it as an interactive, collapsible tree — ideal for inspecting nested objects and API responses.
Paste or type JSON to view its structure as a collapsible tree.
A JSON viewer renders a document as an interactive, collapsible tree instead of raw text. Rather than scrolling through thousands of characters on one line, you can expand only the branches you care about and collapse the rest. It’s the fastest way to understand the shape of an unfamiliar API response.
The tree distinguishes each JSON type so structure is easy to read:
{ }) and arrays ([ ]) are expandable branches that show how many keys or items they contain.The viewer is ideal for inspecting API responses, exploring nested configuration, and debugging data with many levels of nesting. To re-indent the raw text instead, use the JSON Formatter; to check for syntax errors, use the JSON Validator. Everything runs in your browser — your data is never uploaded.
A JSON viewer renders JSON as an interactive, collapsible tree so you can explore its structure — objects, arrays, and values — instead of reading raw text. It's especially useful for large or deeply nested API responses.
Yes. Each object and array can be expanded or collapsed individually, and you can expand or collapse the entire tree at once. Collapsed branches are not rendered, which keeps the view fast.
Yes. All keys and values are rendered as plain text, never as HTML, so pasted JSON cannot inject markup or run code. Nothing is uploaded to a server.
The viewer handles typical API responses comfortably. Extremely large documents are capped to keep the page responsive; for those, use the JSON Formatter instead.
No. It only reads and displays your JSON. Copy and download return your original input unchanged.