Open source concurrency projects
Every project in the registry tagged concurrency, ranked by real GitHub adoption.
Build production-ready applications in TypeScript
Distributed task queue for background jobs and workflows
Bree is a Node.js and JavaScript job task scheduler with worker threads, cron, Date, and human syntax. Built for @ladjs, @forwardemail, @spamscanner, @cabinjs.
Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers
Frequently asked questions
How many open source concurrency projects are there?
This registry tracks 4 projects tagged concurrency, with 29,750 GitHub stars between them. The most-adopted is effect at 16,097 stars.
Are these concurrency projects free to use?
Yes — 4 of the 4 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 concurrency 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 concurrency projects still maintained?
3 of the 4 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.