Flink UI open source
Flink UI, open source — your options
Apache Flink ships an open-source web dashboard, and communities built more. Here's how the options compare and when a production console is worth it.
| Option | License | Best for | Limits |
|---|---|---|---|
| Apache Flink Dashboard (built into Flink) | Apache 2.0 (open source) | Single-cluster visual overview, live job graphs, and backpressure inspection. | Read-only for most operations, no multi-cluster view, no RBAC, no SQL workbench. |
| Flink SQL Gateway + SQL Client | Apache 2.0 (open source) | Running Flink SQL against a cluster from the terminal or REST. | Not a visual interface — you still write SQL and watch output in the terminal. |
| Community Flink job submission UIs | Various open-source | Submit job JARs and monitor job state from a browser. | Often single-cluster, single-author, limited alerting and no team access control. |
| Apache StreamPark / Dinky | Apache 2.0 (open source) | Full streaming development platforms: Flink SQL IDE, job development, deployment, and operations on YARN or Kubernetes. | Heavier platforms to install and run (own metadata database, Flink-version-specific setup). |
| Kubernetes-native dashboards (Grafana, Kube-Prometheus) | Apache 2.0 / open source | Cluster metrics, scaling, and infra monitoring if you run Flink on K8s. | Dashboards for infrastructure, not a Flink management interface for jobs and SQL. |
| Flink Manager (Vinteros Labs) | Commercial (free trial) | Production Flink UI: multi-cluster management, Flink SQL workbench, RBAC, schedulers, retention, alerting. | Licensed for production use — free trial, no credit card required. |
Beyond the open-source Flink UI
Open source gives you a dashboard. Flink Manager gives you a console: Flink SQL, job deployment, auto-scaling, RBAC, schedulers, and retention rules — for one or many clusters.
Ready for a production Flink UI?
Free trial license of Flink Manager — no credit card required.
