Open source concurrency projects

Every project in the registry tagged concurrency, ranked by real GitHub adoption.

projects 10 combined stars ★ 86K refresh nightly
01 yazi ★ 43K

💥 Blazing fast terminal file manager written in Rust, based on async I/O.

last push11 hours ago languageRust licenseMIT
02 effect ★ 17K

Build production-ready applications in TypeScript

last push5 hours ago languageTypeScript licenseMIT
03 Hatchet ★ 8.2K

Distributed task queue for background jobs and workflows

last push5 hours ago languageGo licenseMIT
04 joshuto ★ 3.7K

ranger-like terminal file manager written in Rust

last push8 days ago languageRust licenseLGPL-3.0
05 bree ★ 3.3K

Bree is a Node.js and JavaScript job task scheduler with worker threads, cron, Date, and human syntax. Built for @ladjs, @forwardemail, @spamscanner, @cabinjs.

last push9 months ago languageJavaScript licenseMIT
06 exifcleaner ★ 2.9K

Cross-platform desktop GUI app to clean image metadata

last push11 hours ago languageTypeScript licenseMIT
07 ferrumc ★ 2.5K

A reimplementation of the minecraft server in rust.

last push3 months ago languageRust licenseMIT
08 rtic ★ 2.4K

Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers

last push8 hours ago languageRust licenseApache-2.0
09 sidequest ★ 1.0K

Redis-free background jobs for Node.js. Persist jobs in your existing Postgres, MySQL, SQLite, or MongoDB. A distributed, durable BullMQ alternative with a buil

last push14 days ago languageTypeScript licenseLGPL-3.0
10 libfork ★ 901

A bleeding-edge, lock-free, wait-free, continuation-stealing tasking library built on C++20's coroutines

last push5 months ago languageC++ licenseMPL-2.0

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Frequently asked questions

How many open source concurrency projects are there?

This registry tracks 10 projects tagged concurrency, with 85,585 GitHub stars between them. The most-adopted is yazi at 43,192 stars.

Are these concurrency projects free to use?

Yes — 10 of the 10 carry an explicit open-source licence across 4 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?

8 of the 10 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.