Exercism offers practice and mentoring across 83 programming languages.
AtCoder
vsProgramiz
AtCoder vs Programiz
How do AtCoder and Programiz compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | AtCoder | Programiz |
|---|---|---|
| What it is | AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users. | Programiz offers free online compilers and code editors alongside programming tutorials for languages including Python, JavaScript, SQL, and C++. |
| 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
Sites similar to both AtCoder and Programiz.
Free
24 alternativesZetCode offers accessible programming tutorials covering C#, Go, Python, Java, and other languages.
RegexLearn teaches regular expressions through interactive lessons and practice at different levels.
FreeOpen source
24 alternativesEMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
Rosetta Code presents solutions to the same programming tasks in multiple languages for comparison.





