JSON Formatter
Format and beautify JSON data with 2-space, 4-space or tab indentation, and view syntax errors clearly.
Formatted JSON
Your result will appear here.
What is JSON Formatter?
JSON Formatter is a developer utility designed to transform messy, unformatted, or minified JSON strings into clean, readable, indented structures. It helps debug APIs, format configuration files, and highlight syntax errors with zero network requests.
How to use JSON Formatter
- 1Paste or type unformatted JSON into the input editor.
- 2Choose your preferred indentation level (2 spaces, 4 spaces, or tabs).
- 3Copy the beautified JSON to your clipboard or download it as a .json file.
Key features
Configurable Indentation
Choose between 2 spaces, 4 spaces, or tab indentation based on your code conventions.
Syntax Error Detection
Pinpoints JSON syntax errors and displays clear parsing messages when input is malformed.
Copy & Download Actions
Quick one-click copy to clipboard or direct .json file download with proper MIME types.
100% In-Browser Execution
Formatting uses native browser JSON APIs without streaming your data across the internet.
Examples & use cases
Minified User Object
Formatting a compact JSON response with standard indentation
{"id":101,"name":"Alice","roles":["admin","editor"]}{
"id": 101,
"name": "Alice",
"roles": [
"admin",
"editor"
]
}Nested API Response
Beautifying nested server configurations
{"status":"ok","meta":{"total":1,"page":1},"data":[{"key":"val"}]}{
"status": "ok",
"meta": {
"total": 1,
"page": 1
},
"data": [
{
"key": "val"
}
]
}Frequently asked questions
Helpful guides & tutorials
Related tools
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