GKrellM vs OpenNMS
| GKrellM | OpenNMS | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Web, Linux |
| Free plan | Yes | Yes |
| Supported platforms | Linux, FreeBSD, Mac OS X, NetBSD, OpenBSD, Windows | — |
| Remote monitoring | Yes | — |
| Custom sensor support | Yes | — |
| Alert channels | — | email, sms, webhook |
Both are listed in Best Hardware Monitoring Software. On Everything Xiaomi, GKrellM scores higher on our published basis.