Oncode

Learn software by working on projects

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A platform where you learn software engineering by building real-world projects instead of just watching tutorials. Work on Uber and Google style microservices, scalable APIs, and backend systems in Node.js, Python, or Rust, then get automated feedback. No more toy projects, just **hands-on learning with real challenges**. Try it out: https://www.oncode.co

Oncode is a platform that teaches software engineering through real-world coding challenges and projects.

for: Beginners to professional developers who want hands-on practice.
pricing: freemium · free trial

Key features

6 features of Oncode

Curated real-world challenges — Browse a collection of beginner to hard projects across backend, frontend, and machine learning.
Multi-language support — Write solutions in your preferred language such as Node.js, Python, or Rust.
Automated feedback — Receive functionality, security, performance, and resilience testing on submissions.
Code reviews and AI suggestions — Get personalized code review feedback and learning recommendations.
Community forum — Interact with a global developer community to discuss solutions and share approaches.
Portfolio building — Complete projects to build a showcase of industry-relevant work.

Use cases

Build a REST API for a URL shortener to practice backend development
Implement an ELO rating system for a game leaderboard as a real-time backend challenge
Create a Flask web app for a data-science project using the Hello World API challenge
Prepare for technical interviews by completing advanced security and performance tested projects

Oncode pricing

from oncode.co ↗

Basic$0/month/monthAccess to 20+ beginner projects · Limited submissions · Functionality testing · Community forum access
Pro$15/month/monthAccess to 200+ projects · Unlimited submissions · Security, performance and resilience testing · Code review and feedback