Entering the cosmos — 0%
Start Your Coding
Expedition.
Learn to code through interactive courses, battle challenges, and level up your skills — one expedition at a time.
Start your course
through the cosmos.
Pick a language, start learning, and earn ✦ as you go.
Python
Master the most versatile language in the cosmos. From basics to advanced patterns.
HTML5 & Web Semantics
Build semantic, accessible, SEO-ready web documents and responsive page architectures.
C++
Build fast, powerful software with systems-level programming and memory management.
Java
Write once, run anywhere. Object-oriented design and enterprise engineering patterns.
Coming Soon
More courses launching soon. Stay tuned for the next expedition.
Coming Soon
More courses launching soon. Stay tuned for the next expedition.
Coming Soon
More courses launching soon. Stay tuned for the next expedition.
Put your skills
to the test.
Compete in real-time speed quiz duels, race against global coders, and climb the global leaderboard.
Level Up Your Learning.
Master algorithms, compete in real-time battle arenas, and ascend through cosmic leagues.
Join the Crew.
Simple, transparent pricing. No hidden fees. All plans 100% free during early access.
100% free for limited time
- 5 courses per month
- Community Discord access
- Progress tracking
- Mobile app included
Perfect for exploring the cosmos at your own pace.
100% free for limited time
- Unlimited courses
- Battle Arena
- Priority community support
- Advanced analytics
- AI-powered code review
- Certificate of completion
For serious learners ready to level up fast.
100% free for limited time
- Everything in Pro
- Battle Arena
- 1-on-1 mentorship sessions
- Early feature access
- Private elite community
- Job placement support
The full cosmic experience for the elite few.
All plans include access to our mobile app, community Discord, and base course library.
FAQ Answered
Everything you need to know about learning, competing, leveling up, and growing with CosmoDex.
CosmoDex is a gamified coding platform designed for students and developers to learn programming through interactive courses, coding practice, 1v1 Space Battles, and skill-based challenges.
CosmoDex combines structured programming courses in Python, SQL, and CS fundamentals with hands-on practice, gamified level progression, and real-time multiplayer coding challenges.
CosmoDex offers free access to core learning courses, coding practice, and battle matches, with optional Pro features like AI-powered automated code reviews.
Coding practice gives learners hands-on opportunities to solve real programming exercises, terminal challenges, and quizzes with instant automated test validation.
1v1 Space Battles are competitive real-time coding matches where two players compete head-to-head in a timed format to solve coding problems and MCQ challenges.
Earn XP from solving lessons, winning battle matches, and maintaining daily streaks to level up and climb across 6 Cosmic League Ranks (Explorer to Celestial Master).
Yes! CosmoDex includes AI-powered code analysis that evaluates code style, performance, edge cases, and provides actionable recommendations to improve your programming skills.
Unlike traditional problem sets, CosmoDex is student-focused and combines gamified level progression (XP, streaks, ranks) with real-time 1v1 Space Coding Battles and tangible rewards.
Yes. CosmoDex provides beginner-friendly gamified quests and interactive courses like Codédex, but introduces real-time multiplayer 1v1 coding duels, college hackathons, and Elo ratings to prepare students for real-world technical assessments.
CosmoDex is a free coding platform where students can practice Python, Java, SQL, and data structures with interactive courses, real-time code challenges, and instant automated feedback.
CosmoDex combines programming education with multiplayer gaming mechanics: earn XP, maintain streaks, climb 6 cosmic league ranks, and compete in live 1v1 Space Battles.