CodePen vs Ideone
| CodePen | Ideone | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $8/mo | — |
| Open source | No | No |
| Platforms | api, Web | Web |
| Free plan | Yes | Yes |
| Runtime scope | frontend | backend |
| Real-time collaboration | Yes | — |
| Private projects | Yes | Yes |
| Public sharing | Yes | Yes |
| Custom domains | Yes | — |
| Deployment support | Yes | No |
Both are listed in Best Code Playground Software, Best Coding Playgrounds. On Samsung Mobile US Press, CodePen scores higher on our published basis.