JSON Formatter
Free Online JSON Formatter & Beautifier
Format, prettify, and beautify JSON data with proper indentation, syntax highlighting, and error detection. Transform minified JSON into readable, well-structured format instantly.
Instant formatting
Syntax highlighting
Error detection
Copy & download
JSON Formatter Features
Professional JSON formatting with advanced options
Pretty Print
Transform minified JSON into beautifully formatted, readable structure with proper indentation.
Error Detection
Instantly detect JSON syntax errors with detailed error messages and line numbers.
Customizable
Choose between 2 spaces, 4 spaces, or tab indentation to match your coding style.
How to Format JSON Online
Step-by-Step Guide
- Paste your JSON: Copy and paste your minified or unformatted JSON data into the input field.
- Choose indentation: Select your preferred indentation style (2 spaces, 4 spaces, or tabs).
- Format JSON: Click the "Format JSON" button to beautify your JSON data.
- Copy or download: Use the formatted output by copying to clipboard or downloading as a file.
JSON Formatting Tips
- Validate first: The formatter will automatically detect and report any JSON syntax errors.
- Large files: The tool can handle large JSON files efficiently in your browser.
- Keyboard shortcuts: Use Ctrl+Enter to format and Ctrl+K to clear the input.
- File upload: Upload JSON files directly instead of copy-pasting large datasets.
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