EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
AtCoder
vsCodewars
AtCoder vs Codewars
How do AtCoder and Codewars compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | AtCoder | Codewars |
|---|---|---|
| What it is | AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users. | Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | — | English |
| Alternatives |
Other options to consider
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Rosetta Code presents solutions to the same programming tasks in multiple languages for comparison.







