# RxJava

> Reactive extensions for the JVM

Compose asynchronous and event-based programs with observable streams.

- Source: https://github.com/ReactiveX/RxJava
- Homepage: https://dsc.gg/rxjava
- License: Apache-2.0
- Language: Java
- Stars: 48185
- Forks: 7585
- Contributors: 317
- Last commit: 2026-10-03
- Latest release: v4.0.0-alpha-21 (2026-08-05)
- Purpose: Developer tools
- Runs on: Library / SDK
- For: Enterprise

## Worth score: 83/100

How much DigGitHub recommends it, from activity, adoption, docs, license and security signals.

- Popularity: 23/25
- Momentum: 10/20
- Maintenance: 25/25
- Community: 14/15
- Readiness: 11/15

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Source page: https://diggithub.com/ReactiveX/RxJava
Updated: 2026-10-04