This project is a powerful and user-friendly JSON Diff Viewer built with React, TypeScript, and Vite. It allows users to easily compare two JSON objects side-by-side and view the differences in a clean, syntax-highlighted, color-coded format. The tool is especially useful for developers, testers, and data analysts who need to analyze structural or data changes between JSON payloads.
- 🧠 Smart JSON Comparison — Detects and highlights additions, deletions, and changes.
- 🌈 Color Coded Output —
- 🟩 Added keys/values
- 🟥 Removed keys/values
- 🟨 Modified values
- 🌓 Dark/Light Mode Toggle — Seamlessly switch themes to reduce eye strain.
- 🧾 Syntax Highlighting — Powered by
react-syntax-highlighter. - 🧩 Side-by-Side Diff Layout — Enhanced visual clarity of changes.
- ♻️ Live Updates — Re-renders diff on input change in real-time.
- 💡 No Tailwind or UI Libraries — Styled using clean, custom CSS.
You can deploy this project across multiple platforms with CI/CD integration:
- Vercel — Connect your GitHub repo and deploy instantly with zero config.
- Cloudflare Pages — Edge-deployed for super-fast delivery.
- GitHub Pages — Great for hosting fallback or demo versions.
Follow the steps below to clone and run this project locally:
git clone https://github.com/your-username/json-diff-viewer.git cd json-diff-viewer ### 2. Install Dependencies ```bash npm install ### 3. Run the Development Server npm run dev ### The app will be available at http://localhost:5173. ### 4. Build for Production npm run build ### 5. Preview the Production Build npm run preview 📦 Future Improvements 🔁 Side-by-side visual diff layout — Enhanced comparison for better readability. 🌐 Multilingual support for accessibility — Reach a wider global audience. 💡 AI-based suggestion for JSON improvement — Smart hints to improve data quality and structure. # React + TypeScript + Vite This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules. Currently, two official plugins are available: - [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh - [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh ## Expanding the ESLint configuration If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules: ```js export default tseslint.config({ extends: [ // Remove ...tseslint.configs.recommended and replace with this ...tseslint.configs.recommendedTypeChecked, // Alternatively, use this for stricter rules ...tseslint.configs.strictTypeChecked, // Optionally, add this for stylistic rules ...tseslint.configs.stylisticTypeChecked, ], languageOptions: { // other options... parserOptions: { project: ['./tsconfig.node.json', './tsconfig.app.json'], tsconfigRootDir: import.meta.dirname, }, }, })You can also install eslint-plugin-react-x and eslint-plugin-react-dom for React-specific lint rules:
// eslint.config.js import reactX from 'eslint-plugin-react-x' import reactDom from 'eslint-plugin-react-dom' export default tseslint.config({ plugins: { // Add the react-x and react-dom plugins 'react-x': reactX, 'react-dom': reactDom, }, rules: { // other rules... // Enable its recommended typescript rules ...reactX.configs['recommended-typescript'].rules, ...reactDom.configs.recommended.rules, }, })🔗 Click here to view the deployed app on Vercel
🧑🎓 Author Made with ❤️ by Dhanashri Patil
📧 Email: patil.dhanashrik@gmail.com
