JSON Formatter
FreePretty-format JSON and show helpful errors for invalid input.
Paste JSON to see the formatted result.
About JSON Formatter
Format and beautify JSON data online for free. Pretty-print JSON with syntax highlighting and error detection. No signup required.
How to Use JSON Formatter
- Paste your JSON data into the input area.
- The tool automatically formats and validates your JSON.
- Copy the formatted output or fix any detected errors.
Features
- Auto-formatting with proper indentation
- Syntax error detection with helpful messages
- Clean pretty-printed output
- One-click copy
Why Use This Tool?
- Debug API responses quickly
- Clean up minified JSON for readability
- Validate JSON structure before using in code
Frequently Asked Questions
Does it validate JSON?▼
Yes. Invalid JSON is detected and error messages help you fix syntax issues.
Is it free?▼
Yes, completely free.
Can it handle large JSON files?▼
Yes. Processing happens in your browser with no size limits.
Is my data secure?▼
Yes. JSON is processed locally in your browser.
Does it support nested JSON?▼
Yes. Deeply nested structures are formatted with proper indentation.
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