Collect application traces, logs and metrics in one self-hosted workspace.
Free Community software · own server and storage · at least 4 GB Docker memory

Developer tools
Monitor server and container CPU, memory and network history with alerts.
Monitor server and container CPU, memory and network history with alerts.
Monitor CPU, memory, disk, network and container resource usage on servers you control instead of the infrastructure-monitoring slice of Datadog or Site24x7. Requires a hub and agents; not an external uptime, synthetic browser or full APM service.
Hosting, maintenance and notification costs can remain. Infrastructure metrics only, not full Datadog logs/APM/security; Datadog also has a limited free plan.
Each comparison covers the workflow described above, rather than every paid feature.