About the Project
The story, architecture, and mission behind the Udemy Course Enroller — a free tool built to make premium education accessible.
The Mission
Online education should be a right, not a privilege. While platforms like Udemy offer incredible courses taught by industry experts, the cost can be prohibitive for students and self-learners worldwide. The reality is that instructors want to give their courses away for free — they share 100% off coupons on aggregator sites to build reviews and reach. But these coupons expire within hours, sometimes minutes.
The Udemy Course Enroller was built to solve this exact problem: automatically monitor, discover, and claim these free coupons before they vanish, giving users a perpetual library of premium knowledge at zero cost.
How It Works
1. Scrape
Headless browser pools continuously scan coupon aggregators like Real Discount and Discudemy for new 100% off deals.
2. Filter
Smart exclusion rules filter by category, language, rating, and instructor before any enrollment attempt.
3. Enroll
The Udemy API is used to batch-enroll courses directly into your account, tracking lifetime savings automatically.
Technical Architecture
The application is built on a modern, fully asynchronous Python stack. FastAPI handles concurrent API requests, while CloudScraper manages a pool of headless Chromium instances to bypass anti-bot measures on coupon sites. Data is persisted in SQLite via SQLAlchemy ORM, with Alembic managing schema migrations.
The frontend is intentionally lightweight — pure HTML5, Tailwind CSS, and vanilla JavaScript — ensuring sub-second load times and minimal client-side overhead. Server-Sent Events (SSE) power the live log stream and enrollment progress updates.
For a deep technical breakdown of the scraping architecture and rate-limiting strategies, read the case study on madhudadi.in/blog.
About the Developer
Madhu Dadi
Software Engineer & AI Specialist
Madhu is a full-stack developer and automation enthusiast based in India. He specializes in building AI-driven applications, async web services, and developer tools that solve real-world problems. The Udemy Course Enroller is one of several open-source projects aimed at democratizing access to technology and education.
Open Source & Self-Hostable
This project is fully open-source. Deploy it on your own infrastructure, customize the scrapers, or contribute improvements.