Free browser-based developer tool

JSON Formatter & Validator

Paste JSON data, validate syntax, format readable output, minify for production, sort keys, copy results, and download a clean JSON file.

Input JSON

Indent spacesSort object keys

Formatted output

Valid JSON

{
  "store": "SHB ToolBox",
  "tool": "JSON Formatter",
  "features": [
    "format",
    "validate",
    "minify",
    "copy"
  ],
  "active": true
}

Format and validate JSON online

JSON is commonly used in APIs, web apps, automation tools, Shopify data, configuration files, analytics, database exports, and no-code workflows. Raw JSON can be hard to read when it is minified or copied from an API response. A formatter makes the structure easier to understand.

This tool helps you check whether JSON syntax is valid, format nested objects and arrays, minify JSON for compact use, sort object keys, and copy or download the final result.

Validate JSON

Find syntax errors such as missing commas, brackets, quotes, or invalid values.

Beautify JSON

Format minified JSON into readable indentation with 2 or 4 spaces.

Minify JSON

Copy compact JSON for APIs, scripts, configs, and storage.

Private workflow

JSON formatting runs in your browser without requiring account creation.

Common JSON errors

Missing comma between properties or array items.
Using single quotes instead of double quotes.
Trailing comma after the last item.
Unclosed brackets, braces, or quotation marks.
Invalid values such as undefined or comments inside JSON.

FAQ

Is this JSON formatter free?

Yes. You can format, validate, minify, copy, and download JSON for free.

Can I sort JSON keys?

Yes. Enable the sort keys option to alphabetically sort object keys.

Can I minify JSON?

Yes. Use the copy minified button after your JSON is valid.

Is JSON uploaded?

The formatter is designed to process JSON in your browser.