Open source operator projects
Every project in the registry tagged operator, ranked by real GitHub adoption.
🦥 Easy and simple Prometheus SLO (service level objectives) generator
Logging operator for Kubernetes
🌯 Burrito is a TACoS Kubernetes Operator - "Argo CD for Terraform"
Related tags
Frequently asked questions
How many open source operator projects are there?
This registry tracks 3 projects tagged operator, with 5,016 GitHub stars between them. The most-adopted is sloth at 2,548 stars.
Are these operator projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 1 distinct licence, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which operator project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these operator projects still maintained?
3 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.