Online JSON Formatter, Viewer & Validator

JSON Formatter

Paste JSON, upload a file, or fetch from URL. Beautify, minify, sort keys, and download formatted JSON instantly.

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Indent:

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Input JSON

Lines: 3 • Characters: 22

Output JSON

Lines: 0 • Characters: 0

User Ratings: ⭐ 4.8/5 — 1,294 reviews

What is a JSON Formatter?

A JSON Formatter is an online tool that helps you format, beautify, and validate your JSON data. JSON (JavaScript Object Notation) is one of the most popular data formats used for API communication and configuration files. Raw JSON is often compact and hard to read — our JSON Formatter displays it in a clear, indented, and color-coded structure for easy understanding.

Whether you’re a developer debugging an API response or someone exploring structured data, this JSON Formatter tool provides a simple, mobile-friendly way to view, validate, and copy your data.

How to Use Our JSON Formatter Tool

Paste or Upload JSON: Copy your raw JSON and paste it into the left box, or upload a .json file.
Click “Format”: The tool automatically formats and validates your data, showing it neatly structured in the output box.
Search & Highlight: Use the built-in search bar to quickly find and highlight any key or value within your JSON.
Download or Copy: Once formatted, you can copy or download the beautified JSON file for later use.

Example:

Input:
{"name":"John","age":30,"city":"New York"}

Output (formatted):
{
  "name": "John",
  "age": 30,
  "city": "New York"
}

Frequently Asked Questions

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JSON Formatter

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Frequently Asked Questions