Hubble

7.2easy start · #8 of 29
in Distributed Tracing Tools

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

Runs on api, Linux, Mac, self-hosted, Web, Windows.

Hubble is ranked #8 of 29 in distributed tracing tools on The Geeks Club. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Hubble plans and pricing

All plans

Hubble Free Open source observability layer of Cilium · Requires Cilium to be installed in a Kubernetes cluster docs.cilium.io · 1 Oct 2026

Compared on distributed tracing tools

Free plan: Yes
OpenTelemetry support: Yes
Service map: Yes
Deployment model: self_hosted

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The record

Purpose: Hubble is a distributed networking and security observability platform built on Cilium and eBPF.
Service maps: Hubble UI provides a graphical service map for viewing service dependencies and recent flow events.
Flow visibility: Hubble provides network flow visibility with identity and label metadata, DNS-aware filtering, and protocol-specific insights.
Troubleshooting: Hubble can help identify whether failed communication is caused by DNS, an application, or a network problem at Layer 4 or Layer 7.
CLI: The Hubble CLI can connect to Hubble Relay or a local server to retrieve flow events.
Integrations: Cilium documentation describes metrics and alerting integration with Prometheus, Grafana, and other monitoring systems.
Cluster visibility: Hubble Relay connects to Hubble instances to provide visibility across a cluster or across multiple clusters in a ClusterMesh scenario.
Transport security: When Hubble APIs are exposed over TCP, connections between Hubble instances and Relay are secured with mutual TLS by default.
Sensitive data: Layer 7 flow data is not redacted by default; Cilium provides options to redact HTTP query parameters, URL user information, and headers.
Requirements: Hubble observability requires Cilium to be installed, and only pods managed by Cilium are observable by Hubble.
Platform support: The Hubble CLI installation guide provides downloads for Linux, macOS, and Windows.
Maker: Cilium was originally created by Isovalent.
Price from: Free

Where it ranks on The Geeks Club

Best Distributed Tracing Tools in 2026#8 of 29

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Sources

docs.cilium.io/en/stable/overview/intro/· checked 1 Oct 2026
docs.cilium.io/en/stable/gettingstarted/hubble/· checked 1 Oct 2026
docs.cilium.io/en/stable/overview/component-overview/· checked 1 Oct 2026
docs.cilium.io/en/stable/internals/hubble/· checked 1 Oct 2026
docs.cilium.io/en/stable/observability/visibility/· checked 1 Oct 2026
docs.cilium.io/en/stable/operations/troubleshooting/· checked 1 Oct 2026
docs.cilium.io/en/stable/gettingstarted/hubble_setup/· checked 1 Oct 2026
cilium.io· checked 1 Oct 2026