Format JSON Online
Format, validate, and analyze JSON data with a single click. Get insights into your JSON structure with automatic statistics.
Powerful Online JSON Formatter
Our JSON formatter is more than just a pretty printer - it's a complete JSON analysis tool. Format your JSON, sort keys for consistency, and get instant statistics about your data structure.
Advanced Features
- Alphabetical key sorting: Sort all object keys for consistent formatting
- Structure analysis: Count objects, arrays, and unique keys
- Size calculation: Know exactly how large your JSON is
- Validation: Catch syntax errors with helpful messages
- Privacy-first: All processing happens in your browser
Why Sort JSON Keys?
Sorting keys alphabetically makes JSON easier to compare, merge, and version control. When keys are always in the same order, Git diffs become meaningful and code reviews become simpler. Many teams require sorted keys in their coding standards.
JSON Structure Analysis
Understanding your JSON structure is crucial for API development. Our tool shows you the complexity of your data - how many nested objects, how many arrays, and the total size. This helps you optimize API responses and database documents.
Best Practices
Keep JSON payloads small for API performance. Use consistent naming conventions for keys (camelCase is most common). Validate JSON before storing in databases. Consider JSON Schema for complex validation rules.