Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
Codility
vsExercism
Codility vs Exercism
How do Codility and Exercism compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Codility | Exercism |
|---|---|---|
| What it is | Codility Developer Training offers hands-on programming lessons, including exercises on topics such as binary gaps. | 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 Codility and Exercism.
Coding Problems provides solutions to coding and algorithm problems and multiple programming exercises.
Open source
24 alternativesProgramiz offers free online compilers and code editors alongside programming tutorials for languages including Python, JavaScript, SQL, and C++.
ZetCode offers accessible programming tutorials covering C#, Go, Python, Java, and other languages.
Rosetta Code presents solutions to the same programming tasks in multiple languages for comparison.
CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.






