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JSON Formatter & Validator

Format, validate, and visualize JSON data with advanced features. Support for tree view, error highlighting, and bulk operations.

Formatting Options
Input JSON

Drop your JSON file here

or click to browse files

Formatted JSON

Why Choose Our JSON Formatter?

Advanced features and privacy-first approach make our JSON formatter the best choice for developers and data professionals.

Smart JSON Validation

Advanced error detection with precise line and column information for quick debugging.

Interactive Tree View

Visualize JSON structure with expandable/collapsible tree navigation.

Custom Formatting

Control indentation, key sorting, comment removal, and output format.

Privacy First

All processing happens in your browser - your data never leaves your device.

Lightning Fast

Instant formatting and validation with real-time feedback as you type.

Export Options

Download formatted JSON or copy to clipboard with one click.

How We Compare

See how our JSON formatter stacks up against popular alternatives.

Feature
Toolspy
JSONLintJSON ViewerCode Beautify
File Size Limit
50MB
1MB10MB5MB
Tree Visualization
✅ Interactive tree
❌ Text only✅ Basic tree✅ Basic tree
Error Detection
✅ Line/column details
✅ Basic errors✅ Basic errors✅ Basic errors
Batch Processing
✅ Multiple files
❌ Single file❌ Single file❌ Single file
Custom Formatting
✅ Advanced options
✅ Basic options✅ Limited options✅ Basic options
Privacy Protection
✅ Client-side only
⚠️ Server processing⚠️ Server processing⚠️ Server processing
Download Options
✅ Multiple formats
✅ JSON only✅ JSON only✅ JSON only
Comments Support
✅ Auto-remove option
❌ Not supported❌ Not supported❌ Not supported

Perfect For Every Use Case

From API development to data analysis, our JSON formatter handles all your needs.

API Development
Validate and format JSON responses during API development and testing.
REST API responses
GraphQL queries
Configuration files
Data Analysis
Clean and structure JSON data for analysis and visualization.
Log files
Export data
Survey responses
Code Review
Format JSON for better readability during code reviews and documentation.
Configuration files
Test data
Mock responses
Learning & Education
Understand JSON structure and syntax with visual tree representation.
Tutorial examples
Student assignments
Code samples

Frequently Asked Questions

Everything you need to know about our JSON formatter and validator.

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