Open source asynchronous projects
Every project in the registry tagged asynchronous, ranked by real GitHub adoption.
📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even
Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.
Ultra-low-latency asynchronous C++17 logging and metrics library for performance-critical applications
Web Scraping Framework
A Python stream processing engine modeled after Yahoo! Pipes
Queuer is a queue manager, built on top of OperationQueue and Dispatch (aka GCD).
OpenMessaging Runtime Interface for Java
Frequently asked questions
How many open source asynchronous projects are there?
This registry tracks 7 projects tagged asynchronous, with 23,055 GitHub stars between them. The most-adopted is transmittable-thread-local at 8,305 stars.
Are these asynchronous projects free to use?
Yes — 7 of the 7 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 asynchronous 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 asynchronous projects still maintained?
4 of the 7 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.