Karma vs Robusta
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Karma | Robusta |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 87 · Excellent | 87 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | MIT |
| Language | TypeScript | Python |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 256 MB |
| Deployment | docker, binary | kubernetes, helm |
| GitHub stars | ★ 2,679 | ★ 3,101 |
| First released | 2017 | 2021 |
| Replaces | PagerDuty | Datadog, PagerDuty |
What are Karma and Robusta?
Karma
Karma is a web dashboard that aggregates and displays alerts from one or more Alertmanager instances. It provides grouping, filtering, and silencing in a single clean view for on-call engineers.
- Multi-Alertmanager aggregation
- Alert grouping and filtering
- Inline silence management
- Auto-refreshing display
Robusta
Robusta enhances Prometheus alerts for Kubernetes with enriched context, automated troubleshooting, and notifications to Slack and other channels. It helps teams understand and respond to cluster issues faster.
- Enriched Kubernetes alerts
- Automated remediation playbooks
- Slack and Teams notifications
- Crash and OOM diagnostics
Karma vs Robusta: key differences
Karma is written in TypeScript, while Robusta is built with Python. Licensing differs — Apache-2.0 for Karma versus MIT for Robusta. Karma is the lighter option, starting around 64 MB of RAM against 256 MB for Robusta. Karma is the more established project (first released 2017), while Robusta arrived in 2021. Karma lists first-class Docker deployment; Robusta does not.
Why pick each one
Choose Karma if…
- Clear at-a-glance overview
- Lightweight
Watch out for
- Read-mostly view
- Requires Alertmanager
Choose Robusta if…
- Makes alerts actionable
- Strong Kubernetes focus
Watch out for
- Kubernetes only
- Best with Prometheus already running
Frequently asked questions
Is Karma or Robusta better?
Neither is universally better. Robusta has the larger community, while Karma is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Karma and Robusta free and open-source?
Yes. Karma is licensed under Apache-2.0 and Robusta under MIT. Both can be self-hosted at no software cost.
Can I run Karma and Robusta with Docker?
Karma: yes. Robusta: check the project docs for container support.
Which is lighter on resources, Karma or Robusta?
Karma has the smaller minimum footprint at 64 MB of RAM, compared to about 256 MB for Robusta. Real-world usage depends on library size, user count, and enabled features.