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Hubble

Free#14 of 29 in eBPF Observability Tools

Hubble: A focused open-source tool for tracing Kubernetes service flows, protocols, and policy behavior. Ranked #14 of 29 in eBPF Observability Tools by our editors (7.9/10); pricing: Open source; best for kubernetes network and service-flow visibility.

7.9/10Editor score

Visit Hubble

Hubble7.9 Visit Hubble

At a glance

Editor score
7.9 / 10
Pricing
Open source
Best for
Kubernetes network and service-flow visibility
Paid from
Free
Deployment model
Self-hosted
Facts checked
22 Sep 2026

Where it wins
- Maps service dependencies and visualizes Kubernetes service flows
- Covers TCP, DNS, HTTP, Kafka, and Layer 3–7 visibility
- Relay, CLI filtering, metrics, and policy observability support analysis
Where it doesn't
- Self-hosted deployment places operation with the Kubernetes team
- The Hubble UI is currently beta
- Its focus is Kubernetes network and application observability

Our verdict on Hubble

Hubble is an open-source, self-hosted observability platform for Kubernetes workloads. Built on Cilium and eBPF, it is aimed at cloud-native teams that need visibility into service communication, network flows, security-policy decisions, DNS activity, HTTP requests, and application-level network metrics. Its component set includes a CLI, server, metrics subsystem, relay, and a beta web UI, with support for Linux, macOS, Windows, web access, and an API.

The standout area is flow and service visibility. Hubble can present service dependencies through service maps, expose TCP, DNS, HTTP, and Kafka traffic, and provide Layer 3, Layer 4, and Layer 7 protocol visibility. The Hubble CLI adds flow observation and filtering, while Hubble UI supports visual flow analysis. Network and application metrics extend the view beyond individual events, and network-policy and security observability help teams examine how policy decisions affect communication. Hubble Relay adds access across multiple nodes or clusters.

Hubble fits teams that want a focused observability layer around Kubernetes networking and service behavior rather than a broad, general-purpose monitoring product. Its self-hosted deployment model suits organizations prepared to operate the required Kubernetes components and choose their own access patterns through the CLI, relay, UI, or API. Teams mainly seeking non-Kubernetes monitoring, or a product centered on a wider application-management scope, should consider a broader alternative. For Kubernetes operators investigating service flows, protocol activity, and policy behavior, Hubble’s open-source model and focused feature set make it a direct option.

Your product? Our editors can test Hubble in depth and publish a review, labelled as paid · from $149/mo →

Hubble pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on github.com

Hubble fact sheet

Free plan	Not verified
Paid from	Free
Deployment model	Self-hosted
Kubernetes support	Yes
Network visibility	Yes
Application tracing	Not verified
Kernel profiling	Not verified
Supported operating systems	Linux, macOS, Windows
Deployment	Self-hosted
Platforms	Web, Windows, macOS, Linux
Support	Community, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Open source
Website	github.com
Facts checked	22 Sep 2026

Alternatives to Hubble

See all Hubble alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Hubble for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Hubble is listed in our eBPF Observability Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update