Open source high-availability projects
Every project in the registry tagged high-availability, ranked by real GitHub adoption.
Declarative workflow orchestration for data, AI, and infra
The lightweight, fault-tolerant database built on SQLite. Designed to keep your data highly available with minimal effort.
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
The most popular Kubernetes Operator for PostgreSQL.
AIStore: scalable storage for AI applications
Frequently asked questions
How many open source high-availability projects are there?
This registry tracks 5 projects tagged high-availability, with 73,773 GitHub stars between them. The most-adopted is Kestra at 30,122 stars.
Are these high-availability projects free to use?
Yes — 5 of the 5 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which high-availability 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 high-availability projects still maintained?
5 of the 5 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.