JSON Formatter / Prettifier

A powerful, free online JSON toolkit built with Next.js that helps developers format, validate, parse, and minify JSON data instantly. No registration required - just open and use!

🌐 Live Demo: https://jsonprettier.in

✨ Features

🔧 JSON Formatter / Prettifier

• Beautify JSON - Format messy JSON into readable, properly indented code
• Syntax highlighting - Color-coded JSON for better readability
• Copy to clipboard - One-click copying of formatted JSON
• Download formatted JSON - Save formatted files directly
• Real-time formatting - Instant results as you type

✅ JSON Validator

• Syntax validation - Check if your JSON is valid
• Error highlighting - Pinpoint exact syntax errors
• Detailed error messages - Clear explanations of what's wrong
• Line-by-line validation - See exactly where issues occur

🔍 JSON Parser

• Visual tree structure - Interactive JSON object tree
• Data type identification - See data types at a glance
• Expandable/collapsible nodes - Navigate large JSON easily
• Statistics - Object size, depth, and property counts

📦 JSON Minifier

• Remove whitespace - Compress JSON to smallest size
• Preserve functionality - Maintains JSON validity
• Size comparison - See compression savings
• Download minified - Save compressed files

🚀 Built With

• Next.js 15 - React framework for production
• TypeScript - Type-safe development
• Tailwind CSS - Utility-first CSS framework
• React Hot Toast - Beautiful notifications
• Lucide React - Modern icon library

🛠️ Tech Stack

• Frontend: Next.js, React, TypeScript
• Styling: Tailwind CSS
• Icons: Lucide React
• Notifications: React Hot Toast
• Analytics: Google Analytics
• Deployment: Vercel (recommended)

📱 Responsive Design

• Mobile-first - Optimized for all screen sizes
• Touch-friendly - Easy to use on mobile devices
• Progressive Web App - Install as native app
• Fast loading - Optimized performance

🎯 Use Cases

For Developers

• API Development - Format API responses
• Configuration Files - Validate JSON configs
• Data Processing - Parse and analyze JSON data
• Debugging - Pretty-print JSON for debugging

For Designers

• JSON Mockups - Format data for prototypes
• API Documentation - Create readable examples
• Data Visualization - Understand JSON structure

For Students

• Learning JSON - Practice with real examples
• Assignment Help - Format and validate JSON
• Project Work - Clean up messy JSON data

🚀 Getting Started

Prerequisites

• Node.js 18+
• npm or yarn

Installation

1. Clone the repository

   git clone https://github.com/yourusername/json-prettier.git
   cd json-prettier

2. Install dependencies

   npm install
   # or
   yarn install

3. Set up environment variables

   cp .env.example .env.local

   Update .env.local with your values:

   NEXT_PUBLIC_GA_ID=your-google-analytics-id
   NEXT_PUBLIC_SITE_URL=https://your-domain.com

4. Run development server

   npm run dev
   # or
   yarn dev

5. Open in browser

   http://localhost:3000
   

📁 Project Structure

json-prettier/
├── src/
│   ├── app/                    # Next.js app directory
│   │   ├── about-us/          # About Us page
│   │   ├── contact-us/        # Contact Us page
│   │   ├── json-minifier/     # JSON Minifier tool
│   │   ├── json-parser/       # JSON Parser tool
│   │   ├── json-validator/    # JSON Validator tool
│   │   └── page.tsx           # Home page (Formatter)
│   ├── components/            # React components
│   │   ├── AdPlacement.tsx    # Ad placement component
│   │   ├── Footer.tsx         # Site footer
│   │   ├── Header.tsx         # Site header
│   │   ├── JsonMinifier.tsx   # Minifier component
│   │   ├── JsonParser.tsx     # Parser component
│   │   ├── JsonPrettifier.tsx # Formatter component
│   │   └── JsonValidator.tsx  # Validator component
│   ├── config/                # Configuration files
│   │   └── page-config.json   # Page settings
│   └── lib/                   # Utility functions
│       ├── ads-config.ts      # Ad configuration
│       └── use-beautify-counter.ts # Usage counter hook
├── public/                    # Static assets
├── .env.example              # Environment variables template
├── .gitignore               # Git ignore rules
├── next.config.js           # Next.js configuration
├── package.json             # Dependencies
└── README.md               # This file

🔧 Available Scripts

• npm run dev - Start development server
• npm run build - Build for production
• npm run start - Start production server
• npm run lint - Run ESLint
• npm run type-check - Run TypeScript checks

🤝 Contributing

We welcome contributions! Please see our contributing guidelines:

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

📝 License

This project is licensed under the MIT License - see the LICENSE file for details.

📞 Support

• Email: jsonprettier@outlook.com
• Issues: GitHub Issues
• Documentation: Project Wiki

🙏 Acknowledgments

• Next.js Team - For the amazing framework
• Vercel - For hosting and deployment
• Tailwind CSS - For the utility-first CSS
• Open Source Community - For inspiration and tools

📈 Roadmap

• JSON Schema Validator - Validate against schemas
• JSON to XML Converter - Convert between formats
• JSON Diff Tool - Compare two JSON files
• API Integration - Validate against live APIs
• Dark Mode - Theme switching
• Keyboard Shortcuts - Power user features

---

Made with ❤️ by a tech enthusiast who loves building productivity tools

Visit JSON Prettifier | Report Bug | Request Feature