Copy your JSON code from your application, API response, or configuration file. Paste it into the input text area on the left side of our JSON beautifier tool.
Click the "Format JSON" button to instantly beautify and validate your JSON data. The tool will check for syntax errors and format the output with proper indentation.
Your beautifully formatted JSON will appear in the output panel with syntax highlighting, proper indentation, and easy-to-read structure.
Switch to Tree View for hierarchical navigation, use Expand/Collapse All for large JSON files, or copy the formatted output to your clipboard.
Error: {name: "John"}
Solution: {"name": "John"} - All JSON keys must be enclosed in double quotes.
Error: {"name": "John", "age": 30,}
Solution: {"name": "John", "age": 30} - Remove the comma after the last property.
Error: {'name': 'John'}
Solution: {"name": "John"} - JSON requires double quotes for both keys and string values.
Error: {"message": "He said "Hello""}
Solution: {"message": "He said \"Hello\""} - Escape quotes with backslashes inside strings.
Error: {"users": [{"name": "John"}
Solution: {"users": [{"name": "John"}]} - Ensure all brackets and braces are properly closed.
JSON: Lightweight, faster parsing, native JavaScript support, less verbose.
XML: More verbose, supports attributes and namespaces, better for document-oriented data. JSON is preferred for APIs and web applications.
JSON: Stricter syntax, better for APIs, faster parsing.
YAML: More human-readable, supports comments, better for configuration files. Choose JSON for data exchange, YAML for config files.
JSON: Supports nested structures, mixed data types, object relationships.
CSV: Simple tabular data, smaller file size, Excel compatibility. Use JSON for complex data, CSV for simple datasets.
JSON is ideal for REST APIs, AJAX requests, configuration files, data storage, and any scenario requiring lightweight data exchange between systems.
A JSON beautifier is an online tool that formats and prettifies JSON data by adding proper indentation, line breaks, and spacing. It makes JSON data more readable and easier to understand for developers.
Simply paste your JSON data into the input field and click "Format JSON". Our tool will automatically validate the JSON syntax and highlight any errors if found.
Yes, our JSON beautifier tool is completely free to use. There are no registration requirements or usage limits.
Yes, our JSON formatter can handle large JSON files. The tool processes data client-side, ensuring your data remains secure and private.
Tree View displays your JSON data in an expandable/collapsible tree structure, making it easier to navigate through nested objects and arrays in complex JSON data.