Cortex vs Monitoror
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Cortex | Monitoror |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 90 · Excellent | 33 · At risk |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | MIT |
| Language | Go | Go |
| Setup difficulty | Hard | Easy |
| Min. RAM | 1,024 MB | 64 MB |
| Deployment | docker, kubernetes, helm | docker, binary |
| GitHub stars | ★ 5,865 | ★ 4,389 |
| First released | 2016 | 2019 |
| Replaces | Datadog, Grafana Cloud | Datadog |
What are Cortex and Monitoror?
Cortex
Cortex provides a horizontally scalable, highly available, multi-tenant, long-term store for Prometheus metrics. It offers a single API endpoint for querying and writing time series data across clusters.
- Multi-tenant metrics storage
- Horizontally scalable
- Prometheus-compatible API
- Long-term retention
Monitoror
Monitoror is a unified monitoring wallboard that displays the status of CI pipelines, services, and other checks on a single screen. It is designed for office TVs and team information radiators.
- Wallboard-style display
- CI and HTTP monitors
- Single-binary deployment
- Configurable tiles
Cortex vs Monitoror: key differences
Both projects are written in Go. Licensing differs — Apache-2.0 for Cortex versus MIT for Monitoror. Monitoror is the lighter option, starting around 64 MB of RAM against 1,024 MB for Cortex. Cortex is the more established project (first released 2016), while Monitoror arrived in 2019.
Why pick each one
Choose Cortex if…
- Built for very large scale
- True multi-tenancy
Watch out for
- Operationally heavy
- Overkill for small setups
Choose Monitoror if…
- Great for office TVs
- Very lightweight
Watch out for
- Limited monitor types
- Less active development
Frequently asked questions
Is Cortex or Monitoror better?
Neither is universally better. Cortex has the larger community, while Monitoror is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Cortex and Monitoror free and open-source?
Yes. Cortex is licensed under Apache-2.0 and Monitoror under MIT. Both can be self-hosted at no software cost.
Can I run Cortex and Monitoror with Docker?
Cortex: yes. Monitoror: yes.
Which is lighter on resources, Cortex or Monitoror?
Monitoror has the smaller minimum footprint at 64 MB of RAM, compared to about 1,024 MB for Cortex. Real-world usage depends on library size, user count, and enabled features.