Charliecloud vs Shifter
| Charliecloud | Shifter | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Linux, self-hosted | Linux |
| Free plan | Yes | — |
| Rootless mode | Yes | — |
| Image building | Yes | No |
| Runtime interface | other | other |
| Supported host OS | Linux | Linux, including SUSE Linux, RHEL/CentOS/Scientific Linux, and Debian/Ubuntu |
| Image format | — | docker |
Both are listed in Best Container Engines. On Freedom251, Charliecloud scores higher on our published basis.