Open source reactive projects

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

projects 3 combined stars ★ 18K refresh nightly
01 WatermelonDB ★ 12K

🍉 Reactive & asynchronous database for powerful React and React Native apps ⚡️

last push41 hours ago languageJavaScript licenseMIT
02 lettuce ★ 5.8K

Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

last push3 hours ago languageJava licenseMIT
03 reactive-interaction-gateway ★ 602

Create low-latency, interactive user experiences for stateless microservices.

last push5 months ago languageElixir licenseApache-2.0

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Frequently asked questions

How many open source reactive projects are there?

This registry tracks 3 projects tagged reactive, with 18,166 GitHub stars between them. The most-adopted is WatermelonDB at 11,786 stars.

Are these reactive projects free to use?

Yes — 3 of the 3 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 reactive 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 reactive 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.