Open source concurrent projects
Every project in the registry tagged concurrent, ranked by real GitHub adoption.
Fast persistent recoverable log and key-value store + cache, in C# and C++.
🏃⛰ Ultra fast monorepo script runner and build tool
A bleeding-edge, lock-free, wait-free, continuation-stealing tasking library built on C++20's coroutines
Frequently asked questions
How many open source concurrent projects are there?
This registry tracks 3 projects tagged concurrent, with 8,782 GitHub stars between them. The most-adopted is FASTER at 6,636 stars.
Are these concurrent 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 concurrent 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 concurrent projects still maintained?
2 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.