Headlamp vs K9s
A side-by-side comparison of two self-hosted developer tools & git options — licensing, setup difficulty, resource needs, and what each one replaces.
Headlamp
Extensible web UI for Kubernetes clusters
VS
K9s
Terminal UI for managing Kubernetes clusters
| Feature | Headlamp | K9s |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 91 · Excellent | 98 · Excellent |
| Category | Developer Tools & Git | Developer Tools & Git |
| License | Apache-2.0 | Apache-2.0 |
| Language | TypeScript | Go |
| Setup difficulty | Medium | Easy |
| Min. RAM | 256 MB | 128 MB |
| Deployment | docker, helm, binary | binary, source |
| GitHub stars | ★ 7,329 | ★ 34,665 |
| First released | 2021 | 2019 |
| Replaces | Lens, Kubernetes Dashboard | Lens, kubectl |
What are Headlamp and K9s?
Headlamp
Headlamp is an open-source Kubernetes web UI and desktop app maintained as a CNCF project. It supports plugins and can be self-hosted in-cluster to provide a customizable dashboard for cluster management.
- Web and desktop modes
- Plugin system
- Multi-cluster support
- In-cluster deployment
K9s
K9s is an open-source terminal-based interface for interacting with Kubernetes clusters. It provides real-time views of cluster resources and shortcuts for common operations on self-hosted clusters.
- Real-time cluster views
- Resource management shortcuts
- Plugin support
- Skinnable themes
Headlamp vs K9s: key differences
Headlamp is written in TypeScript, while K9s is built with Go. K9s is the lighter option, starting around 128 MB of RAM against 256 MB for Headlamp. K9s is the more established project (first released 2019), while Headlamp arrived in 2021. K9s has the considerably larger community, at 34,665 GitHub stars versus 7,329. Headlamp lists first-class Docker deployment; K9s does not.
Why pick each one
Choose Headlamp if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Mature project with 7.3k GitHub stars
- Written in TypeScript
Choose K9s if…
- Fast resource navigation
- Real-time cluster views
- Single Go binary
Watch out for
- Shortcut learning curve
- Terminal-only interface
Frequently asked questions
Is Headlamp or K9s better?
K9s is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Headlamp if its specific feature set fits your needs better.
Are Headlamp and K9s free and open-source?
Yes. Headlamp is licensed under Apache-2.0 and K9s under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Headlamp and K9s with Docker?
Headlamp: yes. K9s: check the project docs for container support.
Which is lighter on resources, Headlamp or K9s?
K9s has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for Headlamp. Real-world usage depends on library size, user count, and enabled features.