CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.
Kattis
vsExercism
Kattis vs Exercism
How do Kattis and Exercism compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Kattis | Exercism |
|---|---|---|
| What it is | Kattis provides a problem archive for users to practice programming challenges. | Exercism offers practice and mentoring across 83 programming languages. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Free |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Kattis and Exercism.
Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
NeetCode offers coding interview practice through courses, assessments, head-to-head mode, and a catalog of programming problems.
AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users.
Coding Problems provides solutions to coding and algorithm problems and multiple programming exercises.
Open source
24 alternatives