As developers, we constantly work with JSON.
Formatting it.
Validating it.
Comparing versions.
Generating models.
Checking schemas.
And most of the time… we open multiple different tools across different websites.
That got me thinking:
👉 Why not build a single modern platform with all JSON utilities in one place?
So I did.
Today I want to share what I built, how I built it, and how you can use the full source code if you want to launch your own developer tools platform.
🌐 Live Application
You can try it here:
No login required.
Runs fully in browser.
No data stored on server.
✨ What The Platform Does
This is not just a formatter — it’s a full developer toolkit.
Included tools
✔ JSON Formatter & Beautifier
✔ JSON Validator with error highlighting
✔ JSON Diff comparison
✔ JSON Schema Validator
✔ JSON → Code Generator
✔ Tree view navigation
✔ Auto fix invalid JSON
✔ Export options
Everything inside one clean interface.
🧠 Why I Built This
I wanted a tool that is:
- Fast
- Privacy friendly
- Modern UI
- Developer focused
- Extensible
- SaaS ready
Most online tools are either:
- outdated UI
- limited features
- heavy ads
- slow performance
So I built something cleaner and production-ready.
⚙ Tech Stack
Built using modern Angular architecture:
- Angular standalone components
- TypeScript
- Modular feature structure
- Responsive UI
- Client-side processing
- Clean scalable architecture
The project is structured so it can easily become:
✔ SaaS product
✔ Developer platform
✔ Internal company tool
✔ White-label solution
🏗 Architecture Approach
Each tool is built as an independent feature module:
features/
formatter/
validator/
diff/
schema/
generator/
Shared UI components are reusable.
State is handled locally (no heavy global store required).
This keeps the app:
- maintainable
- scalable
- easy to extend
💡 Challenges I Faced
Handling Large JSON Efficiently
Rendering large objects without UI freeze required optimized parsing and formatting logic.
Clean Error Detection
Providing meaningful validation feedback instead of generic parsing errors.
Diff Visualization
Making comparison readable and developer friendly.
Performance
Everything runs in browser — no backend processing.
📦 Why I’m Sharing The Source Code
Many developers want to build tools like this but don’t want to start from scratch.
So I packaged the entire production-ready project.
You can:
✔ launch your own JSON tools website
✔ build SaaS on top of it
✔ customize features
✔ use internally
✔ white-label it
💻 Get The Full Source Code
If you want the complete Angular project:
Includes:
- Full project structure
- Installation guide
- License
- Documentation
- Ready to run setup
🚀 Possible Extensions
If you want to expand it, you can add:
- API tester
- Mock server generator
- AI JSON repair
- Team workspace
- Cloud storage
- Paid premium features
Architecture supports growth.
🙌 Final Thoughts
Building developer tools is fun — but turning them into a usable platform is even better.
This project helped me explore:
- modular Angular architecture
- performance optimization
- developer UX design
If you try the tool, I’d love feedback.
And if you want to build your own version — the source code is available.
Happy coding 👨💻
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