How I built a browser-based IDE as a 12-year-old student (1 year of work)

Emrullah Erdoğan — Sat, 25 Apr 2026 05:24:58 +0000

Hey everyone,

For the last 365 days, I’ve been obsessed with one goal: bringing a professional, seamless IDE experience directly to the browser. Today, I’m finally sharing CodingPulse (codingpulse.online) with the world.

I didn't want to build just another simple text editor. I wanted to engineer an end-to-end development environment that feels like a desktop application but runs anywhere.

🚀 The Architecture
CodingPulse isn't just a frontend project; it's a complete ecosystem with its own file system, integrated terminal, and a developer-centric marketplace.

Core Developer Environment: Multi-Language Support (HTML, CSS, JavaScript, Python) with an advanced multi-tab workspace and instant live preview.

Professional Tools: Integrated Terminal (NPM support) and an AI coding assistant to speed up the workflow.

Collaboration & Ecosystem: Real-time collaboration, a public 'Explore' page for open-source projects, and a built-in Marketplace to monetize your UI components.

📋 Full Feature List (Every single detail)
I’ve spent months refining these features to ensure they meet professional standards:

Editor & Workspace
Multi-Language Support: Full support for HTML, CSS, JS, and Python.

Live Preview: Real-time rendering with support for opening in a dedicated new tab.

Advanced Multi-Tab Interface: Manage multiple files simultaneously with a native-feeling tab system.

Global File System: A fully functional browser-based file management system.

Global File Search: Quickly find any file or variable across your entire project.

Project Templates & Boilerplates: Start instantly with pre-configured project structures.

File Management: Upload existing files or export your entire project.

Intelligent Autocomplete: Smart code suggestions to speed up development.

Custom Keyboard Shortcuts: Tailor the experience to your own workflow.

Multiple Editor Themes: Choose from a wide variety of aesthetics.

Advanced Customization: Fully customizable settings (Editor font, size, etc.)

Minimap: A high-level overview of your code for quick navigation.

Zen Mode: Distraction-free coding environment.

Split View: Edit multiple files side-by-side.

Active Linting: Real-time error and warning detection.

Auto-Save & Auto-Refresh: Never lose progress and see changes instantly.

Word Wrap & Formatting: Keep your code clean and readable.

"Clear Console on Run" Toggle: Keep your output clean every time you execute.

Pro Tools
Integrated Browser Terminal: Access NPM and run commands directly in the browser environment.

Integrated Developer Console: Professional-grade logging and debugging tools.

AI Coding Assistant: An integrated AI to help you debug, refactor, and write boilerplate code faster.

Community & Collaboration
Real-Time Collaboration: Multiplayer coding (Google Docs style) for teams.

1-Click Easy Sharing: Share your live project with a single URL.

Explore Page: Discover, fork, like, and comment on public projects.

Developer Marketplace: A dedicated space to buy and sell UI components, templates, and snippets for real money.

⚠️ Testing the Marketplace
The Marketplace is fully functional and integrated with Stripe. Since we are currently in the sandbox phase, you can securely test the checkout flow using the standard Stripe test card:

Card Number: 4242 4242 4242 4242
(Any CVV and future expiry date will work).

🧠 The Vision
I designed this platform as a place where developers can not only write code but actually monetize the value they create. I would love it if you could poke around, try to break the terminal, test the collaboration features, and give me your harshest technical feedback.

🔗 Live Project: codingpulse.online

DEV Community: Emrullah Erdoğan

How I built a browser-based IDE as a 12-year-old student (1 year of work)