Grafana Faro

Grafana Faro is worth adding because frontend observability is a real stack category now, not a nice-to-have extra, and Faro is Grafana's open-source answer for that layer. The official Grafana Faro page positions it as a web SDK for frontend application observability and real user monitoring, collecting browser performance metrics, logs, exceptions, events, and traces. That gives it a very different role from backends like Loki and Tempo. Faro is the browser-side instrumentation layer that feeds frontend observability workflows.

Its pricing context is also unusually legible. Faro itself is open-source software, but its most obvious commercial route is Grafana Cloud Frontend Observability. Grafana's official pricing page currently shows Free at $0 with 50k sessions per month, Pro at $0.75 per 1,000 sessions plus a $19 monthly platform fee, and Enterprise as custom with a $25,000 annual minimum commit. Frontend Observability billing docs further clarify that new customers pay separately for telemetry at $0.50 per GB for logs and $0.50 per GB for traces. That makes Faro one of the cleaner frontend instrumentation entries to compare because both the OSS layer and the managed economics are visible.