Master Coding Through Challenges
Elevate your programming skills with our curated collection of real-world coding challenges. Learn, build, and grow as a developer.
Featured projects
Hello World API
Get started with building your first Rest API using the technology of your choice.
Real-Time Game Leaderboard
Implement an ELO rating system for a game leaderboard.
How It Works
Browse our extensive collection of coding challenges across various difficulty levels and technologies.
Write your solution using your preferred programming language and development environment.
Submit your solution, receive feedback, and learn from other developers' approaches.
Explore Our Learning Tracks
Backend
Hands on backend development
Frontend
Hands on frontend development
Machine Learning
Hands on machine learning
Leaderboard
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What Our Users Say
Jayden Hao
Data scientist
"Oncode allowed me to quickly learn flask and easily create a web app for my data science projects. The project based approach is very helpful in learning!"
Michael Chen
Computer science student
"As a CS student, Oncode has been an invaluable resource for practicing and learning new web development technologies."
Oliver Greer
Software engineering student
"Oncode has been instrumental in extending my coding skills and learning web dev. The challenges are practical and fun!"
Our message
At Oncode, we help developers level up their coding skills by tackling real-world programming challenges that mirror the demands of modern software development. Whether you're a beginner learning to code or an experienced developer looking to sharpen your skills, our hands-on coding projects are designed for every level. Explore backend development, frontend technologies, and machine learning through interactive, project-based courses that teach industry-relevant programming languages, frameworks, and best practices. Join a thriving community of developers, receive expert feedback, and build a strong coding portfolio that sets you apart in the tech industry.
Start coding smarter today! Take on real-world challenges, refine your problem-solving abilities, and turn every project into a career-boosting opportunity with Oncode.
Ready to Level Up Your Coding Skills?
Join thousands of developers who are mastering programming through real-world challenges.