JSON Formatter - Format, Validate & Debug with Auto-Fix
Professional JSON formatter with intelligent error detection and one-click fixes. Get instant validation, syntax highlighting, and ready-to-use templates. Make JSON easy to read with perfectly formatted output.
Auto-Fix
Smart suggestions to fix JSON errors automatically
Real-time Validation
See errors as you type with precise line numbers
Line Numbers
Professional editor with syntax highlighting
JSON Examples
Ready-to-use sample JSON templates for common use cases
Start with Sample Templates
Format, validate, and beautify your data instantly with our tool. Choose from curated templates including API responses, user profiles, product catalogs, and config files. Get json formatted output that's easy to read.
Format, validate, and minify your JSON data with auto-fix
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Ready-to-Use JSON Templates
Skip creating data structures from scratch with our tool. Our curated collection covers common use cases in web development, API design, and data modeling. Get json formatted examples that are json easy to understand.
Complete user profile structure with authentication data, personal information, and preferences. Perfect for user management systems and social applications. Easy to customize and use.
- • User authentication fields
- • Personal information structure
- • Settings and preferences
- • Social media links
Standard REST API response format with pagination, metadata, and error handling. Essential template for API development and testing. Formatted for easy reading.
- • Response status and metadata
- • Pagination structure
- • Error handling format
- • Data array with objects
Comprehensive product catalog structure with pricing, inventory, variants, and SEO data. Ideal for online stores and product management systems.
- • Product details and pricing
- • Inventory and variants
- • SEO metadata
- • Category and tags
Application configuration template with database settings, API keys, feature flags, and environment variables. Perfect for app setup and deployment.
- • Database configuration
- • API endpoints and keys
- • Feature flags
- • Environment settings
Analytics and event tracking structure with user actions, timestamps, and metadata. Essential for analytics platforms and user behavior tracking.
- • Event types and actions
- • User session data
- • Timestamp and metadata
- • Custom properties
Database table structure with relationships, constraints, and indexes. Perfect for database design, documentation, and schema migration planning.
- • Table structure and fields
- • Data types and constraints
- • Relationships and indexes
- • Migration metadata
Why Developers Choose This Tool
Built by developers, for developers. We understand the pain points and created a comprehensive solution with practical examples and intelligent features. Get json formatted output that's json easy to work with.
AI-powered error detection finds problems and suggests specific fixes. Confidence scoring helps you know which suggestions to trust. Makes JSON easy to fix and format correctly.
- • Remove trailing commas
- • Fix unquoted object keys
- • Convert single to double quotes
- • Add missing brackets/braces
Line numbers, syntax highlighting, and jump-to-error functionality. Everything you need for professional editing with sample data.
- • Line-by-line error detection
- • Contextual error messages
- • Keyboard shortcuts
- • Real-time validation
Get started instantly with curated examples from our editor. Covers common use cases from API responses to database schemas and config templates. All json formatted and json easy to understand.
- • User profiles and authentication
- • API responses and pagination
- • E-commerce product catalogs
- • Configuration files and settings
Perfect for Every Developer
Whether you're debugging APIs, validating config files, or learning data structures. Adapts to your workflow with helpful examples and intelligent suggestions.
API Development
Debug API responses and validate request payloads with our tool. Format data for documentation with real examples and sample templates. Get json formatted output that's json easy to read.
Configuration Files
Validate and format config files for applications. Ensure proper syntax with example templates and best practices.
Learning & Teaching
Perfect for students learning JSON syntax with our editor. Helpful error explanations, practical examples, and sample data structures included. Makes JSON easy to learn and understand.
Code Reviews
Ensure files are properly formatted before committing to version control. Validation tools and example templates included.
Trusted by Developers Worldwide
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Validate JSON syntax with real-time error detection and auto-fix suggestions.
- Real-time validation
- Auto-fix suggestions
- Line-by-line errors
Compress JSON by removing whitespace to reduce file size by up to 70%.
- 70% size reduction
- Instant compression
- Performance boost
Transform minified JSON into beautifully formatted, readable code.
- Perfect indentation
- Syntax highlighting
- Professional formatting
Frequently Asked Questions
A JSON formatter is a tool that takes unformatted or minified JSON data and structures it with proper indentation and line breaks. This makes the data easier to read, debug, and understand.
Yes, completely free. No registration, no limits, no hidden fees. All processing happens in your browser, so your data stays private.
Paste your JSON into the editor and errors will be highlighted with line numbers. Click the auto-fix suggestions to resolve common issues like trailing commas, unquoted keys, or missing brackets.
Yes, there's no file size limit. The tool runs entirely in your browser, so performance depends on your device. Files up to several MB work smoothly on most modern computers.
Ready to Format Like a Pro?
Join thousands of developers who trust this tool for their daily workflow. No signup required. Completely free with helpful examples and sample templates.