Best AtCoder Alternatives in 2026

20 apps from coding challenge platforms ranked against AtCoder on the same published basis.

  1. 1AtCoder vs CodeSignal
  2. 2AtCoder vs DMOJ
  3. 3AtCoder vs CSSBattle
  4. 4AtCoder vs Edabit
  5. 5AtCoder vs Eolymp
  6. 6AtCoder vs HackerEarth Assessments
  7. 8AtCoder vs beecrowd
  8. 9AtCoder vs Codeforces
  9. 10AtCoder vs CodingBat
  10. 11AtCoder vs Yandex Contest
  11. 12AtCoder vs GeeksforGeeks Practice
  12. 13AtCoder vs SQLZoo
  13. 14AtCoder vs HackerRank
  14. 15AtCoder vs Codility
  15. 16AtCoder vs AlgoExpert
  16. 17AtCoder vs NextJudge
  17. 18AtCoder vs Coderbyte
  18. 19AtCoder vs TestDome
  19. 20AtCoder vs LeetCode
  20. 21AtCoder vs Qualified

AtCoder alternatives compared

#AppScoreFree planFromRuns on
1CodeSignal7.1Free plan$24.99/moAndroid, API, iOS, Web
2DMOJ7.0Free planFreeAPI, Linux, self-hosted, Web, Windows
3CSSBattle6.9Free plan$4.90/moWeb
4Edabit6.9Free planFreeWeb
5Eolymp6.9Free planFreeAPI, Web
6HackerEarth Assessments6.9Free planFreeLinux, Mac, Web, Windows
8beecrowd6.8Free planFreeAPI, Web
9Codeforces6.8Free planFreeAPI, Web
10CodingBat6.8Free planFreeWeb
11Yandex Contest6.8Free planFreeAPI, Web
12GeeksforGeeks Practice6.7No—Android, iOS, Web
13SQLZoo6.7Free planFreeWeb
14HackerRank6.5No$165/moAPI, Mac, Web, Windows
15Codility6.3No$100/moAPI, Mac, Web, Windows
16AlgoExpert6.2No$9.92/moWeb
17NextJudge6.1No—API, Linux, self-hosted, Web
18Coderbyte6.0No$99/moAPI, Browser, Web
19TestDome6.0No—API, Web
20LeetCode5.9No—Android, iOS, Web
21Qualified5.9No—API, Web
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Questions about AtCoder alternatives

What is the best alternative to AtCoder?

CodeSignal, number 1 in coding challenge platforms with a score of 7.1 out of 10. The others here: DMOJ, CSSBattle, Edabit and 16 more.

What is the best free alternative to AtCoder?

CodeSignal is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.