JSON Formatter – Free Online Tool

Example

{"name":"BuildUtilities","version":"1.0.0","tools":["json-formatter","regex-tester"]}

{
  "name": "BuildUtilities",
  "version": "1.0.0",
  "tools": [
    "json-formatter",
    "regex-tester"
  ]
}

The minified JSON is expanded with 2-space indentation, making the structure clear and readable.

How to Use JSON Formatter

1. 1

   Paste JSON

   Paste your raw or minified JSON into the input field, or drag-and-drop a .json file.

2. 2

   Click Format

   Click the 'Format / Beautify' button to indent and structure the JSON, or 'Minify' to compress it.

3. 3

   View Results

   Switch between syntax-highlighted view and interactive tree view to explore nested structures.

4. 4

   Copy or Download

   Use the copy button or download the formatted output as a .json file.

What is JSON Formatter?

The JSON Formatter is a browser-based tool for developers, data analysts, and anyone working with JSON data. It supports formatting (pretty-printing), minifying (compressing), syntax highlighting with color-coded keys, strings, numbers, and booleans, plus an interactive tree view that lets you expand/collapse nodes and copy JSONPath expressions. All processing happens client-side. Your data is never transmitted to any server. It is a JSON formatter online with no login: no account to create, nothing uploaded, and nothing stored. Open the Network tab in DevTools, clear it, then paste: the request count does not move.

Common Use Cases

• ✦Debugging API responses by pretty-printing raw JSON payloads
• ✦Cleaning up configuration files before committing to version control
• ✦Minifying JSON for production builds to reduce file size
• ✦Validating JSON syntax before sending it to an API endpoint
• ✦Exploring deeply nested data structures with the tree view

Frequently Asked Questions

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