TheJSON

JSON Viewer

Paste JSON, explore it as a tree, and click any value to copy its path.

How to view JSON online

  1. Paste JSON into the editor, drop a .json file, or use Fetch URL to load a public API response.
  2. Switch to Tree or Split view to browse the structure as a collapsible tree.
  3. Click any key or value to select it, then copy the value or its path in JSONPath, JavaScript, bracket or JSON Pointer form.
  4. Use Format, Minify or Sort keys to reshape the document, then copy or download the result.

Why developers use TheJSON

  • Paste first. No upload step, no login, no popups. Paste and the tree appears instantly.
  • Privacy by design. Everything runs in your browser. API responses with tokens or customer data never leave your machine.
  • Click to copy the path. Select any node to copy its JSONPath ($.user.settings.notifications), JavaScript accessor, bracket notation, or JSON Pointer.
  • Precise errors. Malformed JSON is reported with the exact line and column, and one click jumps you there.
  • Survives refresh. Your document is kept in local storage, so a tab reload does not lose your work.

One toolbox, every JSON job

The viewer is the front door. The same document follows you into the JSON formatter, validator, minifier and path finder, and into the converters that turn it into TypeScript interfaces, YAML, CSV or a JSON Schema. Need to compare two payloads? Use the JSON diff.

Frequently asked questions

Is my JSON uploaded to a server?

No. TheJSON is a static site; parsing, formatting and conversion all happen in your browser. The only network request you can trigger is Fetch URL, which loads a URL you choose directly from your browser.

How large a JSON file can the viewer handle?

Documents of several megabytes and tens of thousands of nodes work well in modern browsers. The tree opens collapsed to two levels so very large files stay responsive; use Expand all or search to dig in.

Can I load JSON from a URL?

Yes. Fetch URL loads any publicly readable JSON endpoint that allows cross-origin requests, such as a public REST API or a raw GitHub file. Endpoints that need authentication headers must be pasted instead.

Will I lose my work if I refresh the page?

No. The current document is saved to your browser’s local storage as you type and restored when you come back. Clear removes it.

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