Edabit vs Eolymp

Edabit is a web-based service for practicing programming through interactive coding challenges. Its library is described as containing more than 10,000 problems, with C#, C++, Java, JavaScript, PHP, Python, Ruby, and Swift among the supported languages. Learners submit code and see test results; hints use that context to guide them without simply supplying answers. The site tracks solved challenges and levels, and awards XP according to challenge difficulty. All challenges are free to complete, and the listed Free plan costs nothing. Edabit says it is not currently selling new memberships, and does not offer student-specific or school plans. It is designed primarily for desktop use because coding works best with a physical keyboard. The service is available only to people at least 13 years old. Its privacy policy says passwords are stored encrypted, browser-server traffic uses SSL or HTTPS, and personal information is not shared for marketing or advertising. Session recordings can retain page structure and interactions for up to 30 days.

Eolymp provides tools for creating and hosting programming competitions and learning activities, from small practice rounds to official contests the maker says can involve thousands of participants. Organizers can run synchronized online contests or virtual contests with individual timers, then allow upsolving. Contests support IOI scoring with partial credit and ICPC scoring with time penalties. Problem-authoring tools cover statements, tests, checkers, solutions, validators, interactors and generators; problems can also be imported from Basecamp or Polygon. Courses bring together modules, learning materials, assignments and grades. The API uses HTTPS and JSON, offers API-key or OAuth 2.0 authentication, and has SDKs for Python, Go, PHP and JavaScript. Each space can connect supported AI clients through an MCP server, subject to the signed-in user's permissions. Free Services cost nothing and include problem materials, competition access and automatic solution testing. A new space can be tried free for 30 days with five seats and no payment details to start.