JSON Formatter

Professional JSON formatter and validator. Beautify messy JSON, minify for production, validate syntax errors, and view JSON statistics.

Developer Tools

JSON Input

About JSON Formatter

Format, beautify, and validate JSON data.

Beautify with proper indentation
Minify to reduce size
Validate JSON syntax
View JSON statistics

Formatted Output

Paste your JSON and click Format

to see the beautified output

About & Features

Learn more about this tool and its capabilities

About JSON Formatter

Our professional JSON formatter, beautifier, and validator helps developers and students work with JSON data efficiently. Whether you need to format messy JSON, minify for production, or validate syntax errors, this tool provides instant results with detailed feedback.

JSON (JavaScript Object Notation) is a lightweight data format used extensively in web development, APIs, and data storage. Our formatter ensures your JSON is properly structured, easy to read, and error-free.

Key Features:

Beautify JSON with proper indentation
Minify JSON to reduce file size
Validate JSON syntax and detect errors
View JSON statistics (size, lines, keys)
Copy formatted or minified output
Download JSON files
Real-time formatting as you type

How to Use

Step-by-step guide to get the most out of this tool

How to Use the JSON Formatter

Basic Formatting

Paste your JSON data into the input area
Click the "Format" button
View beautified JSON in the output area
Switch to "Minified" tab to see compressed version

Beautifying JSON

Beautified JSON has:

Proper indentation (2 spaces per level)
Each property on a new line
Easy to read nested structures
Perfect for development and debugging

Minifying JSON

Minified JSON:

Removes all unnecessary whitespace
Reduces file size significantly
Ideal for production environments
Faster data transmission

Validating JSON

Paste JSON you want to validate
Click "Format" button
If valid: See formatted output
If invalid: See error message with details

Common JSON Errors:

Missing commas between properties
Trailing commas (not allowed in JSON)
Unquoted property names (must use double quotes)
Single quotes instead of double quotes
Unclosed brackets or braces

Frequently Asked Questions

Common questions and answers about this tool

JSON Formatter FAQ

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used in web APIs, configuration files, and data storage.

Why should I beautify JSON?

Beautified JSON is much easier to read and debug. While minified JSON is great for production (smaller file size), beautified JSON with proper indentation helps developers understand the data structure and find errors quickly.

How much smaller is minified JSON?

Minification typically reduces JSON size by 10-40% by removing whitespace and line breaks. The exact reduction depends on how nested and complex your JSON structure is.

Can I use single quotes in JSON?

No. Valid JSON requires double quotes for both property names and string values. Single quotes will cause a syntax error. This is one of the key differences between JSON and JavaScript object literals.

What's the difference between JSON and JavaScript objects?

JSON is a text format that follows strict rules (double quotes required, no trailing commas, no functions). JavaScript objects are more flexible. JSON can be easily converted to/from JavaScript objects using JSON.parse() and JSON.stringify().

Is my JSON data secure when using this tool?

Yes. All JSON processing happens entirely in your browser. Your data is never sent to any server. The formatting, minification, and validation all occur client-side for complete privacy.