Developer Tool

JSON Viewer and Formatter to Validate, Format, Minify, and Explore JSON

Paste API responses or config JSON, format or minify the input, and inspect nested data without sending it to a server.

JSON input

Paste raw JSON or load a local file. The data stays in your browser while you validate and explore it.

ShortcutCtrlorCmd+Enter

Status
Waiting
Root
Not parsed
Chars
0

Tree explorer

Paste or edit JSON and explore its nested structure as a collapsible tree.

Paste JSON to get started

Use this page to validate, beautify, minify, and inspect JSON locally in your browser.

Why use this JSON viewer and formatter?

API responses, configuration payloads, and exported data often arrive as dense minified JSON that is difficult to scan quickly. This page gives you a cleaner workflow for validating the syntax, rewriting the input into readable or compact JSON, and inspecting nested structures without sending the payload anywhere.

The split workspace is designed for everyday developer tasks: large editable input on one side, a dedicated tree explorer on the other, and fast actions for validating, formatting, minifying, copying, loading local files, and exploring nested data.

What the tool helps with

  • Validate JSON before using it in code, docs, or API tools
  • Beautify minified JSON into readable, indented output
  • Minify formatted JSON without changing the underlying data
  • Inspect objects and arrays visually in a collapsible tree
  • Keep the entire workflow local in the browser for privacy

How to use it

  1. Paste raw JSON or load a local .json file.
  2. Paste or edit JSON and let the page validate it automatically.
  3. Use Format or Minify to rewrite the JSON directly in the input panel.
  4. Expand and collapse the tree to inspect nested objects and arrays comfortably.
  5. Copy the current JSON input when you are done.

FAQ

What does this JSON viewer and formatter do?

It lets you paste or load JSON locally in the browser, validate it, format it, minify it, copy it, and inspect it in a collapsible tree view.

Can I beautify and minify JSON with the same page?

Yes. The tool can format or minify the JSON directly in the input editor while preserving the data exactly.

Does this JSON tool send my data to a server?

No. Parsing, formatting, minifying, and tree rendering all happen locally in your browser.

Can I load a local JSON file instead of pasting text?

Yes. You can choose a local .json file and the tool will read it in the browser without uploading it.

Can I inspect nested arrays and objects visually?

Yes. Valid JSON is rendered as a collapsible tree so you can expand or collapse nested arrays and objects comfortably.

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