JSON Formatter & Beautifier
Format, validate, and beautify your JSON data instantly. Perfect for debugging APIs, configuration files, and data structures.
How to Use the JSON Formatter
Step 1: Paste JSON Data
Copy your JSON data (from APIs, config files, or databases) and paste it into the input field. The tool accepts both formatted and minified JSON.
Step 2: Choose Action
Format: Makes JSON readable with proper indentation and line breaks.
Minify: Removes whitespace to reduce file size for production.
Step 3: Copy Result
The formatted or minified JSON appears in the output field. Click copy to use it in your projects.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight, text-based data format used for storing and exchanging data between servers and web applications.
Despite its name, JSON is language-independent and supported by virtually all modern programming languages including JavaScript, Python, Java, C#, PHP, and more.
JSON Structure
- Objects: { } contain key-value pairs
- Arrays: [ ] contain ordered lists
- Strings: Text in double quotes
- Numbers: Integer or decimal values
- Booleans: true or false
- null: Represents empty value
Frequently Asked Questions
Why do I need to format JSON?
Formatted JSON is easier to read, debug, and maintain. When working with API responses or configuration files, proper formatting helps you quickly understand the data structure and identify issues.
When should I minify JSON?
Minify JSON for production environments to reduce file size and improve loading times. This is especially important for API responses, configuration files, and data transmission over networks.
What makes JSON invalid?
Common JSON errors include: missing quotes around strings, trailing commas, single quotes instead of double quotes, unescaped special characters, and incorrect nesting of objects/arrays.
Can this tool validate my JSON?
Yes! Our formatter automatically validates JSON syntax. If your JSON is invalid, you'll see an error message explaining the issue, helping you fix formatting problems quickly.
Is my JSON data secure?
All processing happens locally in your browser. Your JSON data never leaves your device or gets sent to any servers, ensuring complete privacy and security.
Common JSON use cases
JSON is widely used for:
- REST API requests and responses
- Configuration files for applications
- Data storage in NoSQL databases
- AJAX web requests
- Package.json files in Node.js projects
- Data exchange between microservices