Hubble

6.7easy start · #18 of 29
in eBPF Observability Tools

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on api, Linux, self-hosted.

Hubble is ranked #18 of 29 in eBPF observability tools on The Geeks Club. It runs on API, Linux, Self-hosted. There is a free plan.

Hubble plans and pricing

All plans

Hubble Free Open source · Apache License github.com · 5 Oct 2026

Compared on eBPF observability tools

Deployment model: self-hosted
Kubernetes support: Yes
Network visibility: Yes
Application tracing: No
Kernel profiling: No
Supported operating systems: Linux, macOS, Windows

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The record

Purpose: Hubble is a distributed networking and security observability platform for cloud native workloads, built on Cilium and eBPF.
Service maps: It automatically discovers Kubernetes service dependencies at L3/L4 and L7 and visualizes and filters data flows as a service map.
Flow visibility: It provides visibility into individual TCP connections, DNS queries, HTTP requests, Kafka communication, and other network and application protocol flows.
Metrics: Its monitoring examples include network behavior, network policy observation, HTTP request and response rates and latency, and DNS request and response monitoring.
Security observability: Hubble can show connections blocked by network policy, services accessed from outside a cluster, and services resolving particular DNS names.
Integrations: Hubble is built on Cilium and eBPF; Cilium documentation names Prometheus and Grafana among monitoring systems that integrate with its metrics and alerting.
Deployment scope: Hubble can provide visibility at node, cluster, or multi-cluster scope; Hubble Relay enables cluster-wide or Cluster Mesh visibility.
API access: By default, the Hubble API operates on the node where the Cilium agent runs, and the Hubble CLI queries it through a local Unix Domain Socket.
Web interface: Hubble UI is a web interface for visualizing and filtering service dependencies and data flows, accessed through a browser.
Security configuration: The documentation describes configuring TLS for the Hubble API and TLS client certificates when connecting Hubble UI to a TLS-enabled Relay.
License: The project is open source and licensed under the Apache License.
Support: The project directs users to the Cilium Slack #hubble channel to ask questions and share experiences with developers and users.
Stability: The repository lists Hubble CLI, Server, Metrics, and Relay as stable, while Hubble UI is beta and should be used with caution in critical production workloads.
Compatibility: The Hubble CLI is backward compatible with supported Cilium releases, and only the latest Hubble CLI version is maintained.
Price from: Free

Where it ranks on The Geeks Club

Best eBPF Observability Tools in 2026#18 of 29

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Sources

github.com/cilium/hubble· checked 5 Oct 2026
docs.cilium.io/en/stable/overview/intro/· checked 5 Oct 2026
docs.cilium.io/en/stable/observability/hubble/· checked 5 Oct 2026
docs.cilium.io/en/stable/observability/hubble/hubble-u· checked 5 Oct 2026