Weaveworks offers a free and open source GUI for Flux under the weave-gitops project.
You can install the Weave GitOps UI using a Flux HelmRelease
,
please see the Weave GitOps documentation for more details.
The Flux community maintains a series of Grafana dashboards for monitoring Flux.
See the monitoring section of the Flux documentation for how to install Flux's Grafana dashboards.