JSON Formatter
Beautify your JSON with proper indentation and formatting. Paste minified or messy JSON and get clean, readable output instantly. Choose your preferred indentation level.
How to Use
- Paste your JSON — Paste minified or messy JSON into the input panel on the left.
- Choose indentation — Select your preferred indentation style: 2 spaces, 4 spaces, or tab.
- Click Format — Press the Format button to beautify your JSON. The formatted output appears on the right.
Key Features
- Multiple indentation options: 2 spaces, 4 spaces, or tabs
- Preserves all data values — only whitespace is changed
- Instant formatting with syntax error detection
- One-click copy of formatted output
Use Cases
- Making minified API responses readable for debugging
- Standardizing JSON indentation across a team or project
- Preparing JSON for documentation or code reviews
Frequently Asked Questions
What indentation options are available?
You can choose between 2 spaces, 4 spaces, or 1 tab for indentation. Select your preferred style from the dropdown.
Does formatting change my JSON data?
No. Formatting only adds whitespace and indentation. Your data values remain exactly the same.
Can I format invalid JSON?
No. The formatter requires valid JSON input. If your JSON has syntax errors, an error message will indicate what needs to be fixed.
Is there a size limit?
There is no hard limit. PureJSON can format large JSON files quickly, limited only by your browser's available memory.
Can I format JSON with comments or trailing commas?
No. Standard JSON does not allow comments or trailing commas. Remove them first, then paste valid JSON to format it.