ReactiveX/RxKotlin

Health v2 · maintenance only

Adoption not part of the score

7029 stars · 456 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

RxKotlin is a lightweight library of Kotlin extension functions for RxJava, streamlining reactive programming on the JVM. It centralizes idiomatic Kotlin conveniences like toObservable() and named-argument subscribers for RxJava 3.x.

Use cases

• convert collections and iterables into observables with idiomatic Kotlin
• reduce boilerplate when subscribing to RxJava streams
• use named arguments for onNext, onError, and onComplete handlers
• write reactive asynchronous code on the JVM or Android in Kotlin
• standardize RxJava usage conventions across a Kotlin codebase

When to choose

• you use RxJava with Kotlin and want less boilerplate via extension functions
• you are building reactive Android or JVM applications in Kotlin
• you want a centralized, conservative set of Kotlin idioms for RxJava 3.x

When to avoid

• you prefer Kotlin coroutines and Flow over RxJava-style reactive streams
• you need new features for RxJava 1.x or 2.x, which are end-of-life or in maintenance mode
• you are not using RxJava at all

Facets

library · maturity maintenance

concurrency developer-tools developer-tools programming-languages jvm reactive-programming rxjava kotlin-extensions observables android

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