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Format, validate, and clean JSON

JSON Formatter

Format messy JSON into clean, readable, and properly indented code. Paste your JSON, validate it instantly, beautify output, minify it, copy it, or download it as a JSON file.

Validate JSON Beautify JSON Minify JSON

Readable JSON in seconds

Turn compact or broken-looking JSON into organized data that is easier to inspect, debug, and share.

Free JSON Formatter Tool

Paste your JSON code below and format it instantly. This tool works in your browser and keeps your data private.

Input JSON 0 characters
Formatted Output 0 characters
Choose spacing for nested JSON objects and arrays.
Optionally sort object keys alphabetically for cleaner review.
Load sample JSON to test the formatter quickly.
0 Input Characters
0 Output Characters
Waiting Validation Status
JSON formatted successfully.
Please paste valid JSON before formatting.
This JSON Formatter runs in your browser. Your pasted JSON is not uploaded to the server.

Why Use a JSON Formatter?

JSON is easier to read, debug, and validate when it is properly formatted with clean indentation.

Validate JSON

Quickly check whether your JSON is valid and see helpful error messages when the structure is incorrect.

Beautify Data

Convert compact JSON into readable formatted output with proper spacing for objects, arrays, keys, and values.

Private Browser Tool

Your JSON is processed locally in the browser, making it useful for API responses, settings, and test data.

What Is JSON Formatting?

JSON formatting is the process of converting raw JSON data into a readable structure using indentation and line breaks. It makes nested objects and arrays easier to understand, especially when working with APIs, configuration files, and databases.

A JSON Formatter is useful for developers, testers, students, and website owners who need to inspect API responses, fix syntax errors, clean configuration data, or prepare JSON for documentation.

How It Works

Format JSON data in three simple steps.

Paste JSON

Add your JSON object, array, API response, schema, or configuration data into the input editor.

Choose Options

Select indentation size and optionally sort object keys alphabetically for cleaner output.

Copy Clean JSON

Click format or minify, review the validated output, then copy or download your JSON file.

JSON Formatter FAQs

Common questions about formatting, validating, and minifying JSON online.

Yes, this JSON Formatter is free to use. You can format, validate, minify, copy, and download JSON online.
Yes. If your JSON has invalid syntax, the tool shows an error message so you can fix the issue before using the data.
Yes. You can use the Minify JSON button to remove extra spacing and create compact JSON output.
No. This tool works directly in your browser, so your pasted JSON is processed on your own device.
You can format API responses, configuration files, JSON schemas, app settings, database exports, and normal JSON snippets.