Open source runtime projects
Every project in the registry tagged runtime, ranked by real GitHub adoption.
Declarative data automation language and Go runtime for structured extraction workflows.
Visualise Go runtime metrics in real time
Durable & Deterministic Workflow Engine
Frequently asked questions
How many open source runtime projects are there?
This registry tracks 3 projects tagged runtime, with 10,411 GitHub stars between them. The most-adopted is ferret at 6,012 stars.
Are these runtime projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 3 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 runtime 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 runtime 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.