Codeforces vs Topcoder
| Codeforces | Topcoder | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, Web | api, Web |
Both are listed in Best Coding Challenge Sites. On The Geeks Club, Codeforces scores higher on our published basis.