Server Programming Challenges
Build real network servers, solve protocol challenges, and join a community of developers
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New to Protohackers?
Follow our guided learning path from beginner to expert
1
Start Simple
2
Learn Protocols
Master TCP, UDP, and JSON
3
Build Complex Systems
Create distributed applications
4
Compete
Race for the fastest solutions
How The Challenges Work
- Get the Spec: Each challenge provides a detailed protocol specification
- Code Your Server: Implement the server in any language you prefer
- Host & Submit: Deploy your solution and submit the endpoint URL
- Automatic Testing: Our system tests your server thoroughly
- Climb the Leaderboard: Compete for the fastest solve times globally