JSON Formatter – Format, Validate, Minify & Fix JSON Online
Free online JSON formatter, validator, minifier, and fixer. Syntax highlighting, tree view, file upload, auto-fix, real-time stats. 100% private.
INPUT
0 chars
1
RESULT
1
Original: 0 chars / 1 lines
Result: 0 chars / 1 lines
Minified: 0 chars
Errors: 0
How to Use JSON Formatter
1
Paste Data
Paste your JSON string into the input box on the left. The tool will automatically check for syntax errors.
2
Choose Action
Use Format to beautify, Minify to compress, Validate to find errors, or Fix JSON to auto-repair common issues.
3
Copy Result
The processed JSON will appear in the right panel. Click the copy button or 'Copy Result' to save it.
Example Input
{"name":"ToolNex","active":true,"items":["A","B"],"count":2}Example Output (Formatted)
{
"name": "ToolNex",
"active": true,
"items": [
"A",
"B"
],
"count": 2
}Key Notes for JSON Formatting
- 100% Private: All formatting and validation happens purely in your browser.
- Validation: Automatically detects syntax errors with exact line and column numbers.
- Auto-Fix: Repairs common JSON issues like trailing commas or missing quotes.
- Tree View: Interactive expandable/collapsible tree for easy data exploration.
Want to Master JSON Syntax?
Explore our comprehensive guide on JSON syntax, best practices, and how to use our formatter effectively.
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