CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.
Kattis
vsNeetCode
Kattis vs NeetCode
How do Kattis and NeetCode compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Kattis | NeetCode |
|---|---|---|
| What it is | Kattis provides a problem archive for users to practice programming challenges. | NeetCode offers coding interview practice through courses, assessments, head-to-head mode, and a catalog of programming problems. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Kattis and NeetCode.
Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
30 Seconds of Code offers hundreds of short coding articles to help readers practice programming skills.
Toph hosts competitive programming contests and problems on algorithms and data structures, with a community for participants.
AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users.
EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.