OpenJar Launcher vs UltimMC
| OpenJar Launcher | UltimMC | |
|---|---|---|
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Free plan | Yes | |
| Separate instances | Yes | Yes |
| Modpack import | both | |
| Java runtime management | Yes | |
| Built-in modpack catalog | Yes | |
| Automatic updates | Yes | No |
Listed together in Best Minecraft Launchers