Organization

ReactiveX

@reactivex • Reactive Extensions for Async Programming. Use this route to separate flagship concentration from portfolio breadth before you treat a publisher as broadly strong.

Portfolio concentration

84%

Top three share

Shows whether the organization is driven by one breakout repo or several visible projects.

Breadth

30 repos

Visible snapshot

4 repositories updated in the last 90 days.

Leading language

Java

Portfolio mix

Java (16), TypeScript (5), Unknown (3)

Average size

Stars per repository

Useful for distinguishing one flagship-heavy publisher from a repeatable portfolio.

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Updated: 2019-02-01(2644d ago)GitHub API fallback30 repositories

Portfolio Shape

84%

of the visible star count comes from this organization's top three repositories.

Average Repository Size

stars per repository in this same snapshot.

Current Mix

Java

is the most common language here, with 4 repositories updated in the last 90 days.

Why this rank

This organization stands out because its public portfolio is relatively balanced across 30 repositories.

Balanced portfolio across 30 reposTop 3 share 84%

Organization pages work best when you separate portfolio breadth from flagship concentration. In ReactiveX's case, the visible top three repositories account for about 84% of total stars in this snapshot, which helps explain whether the organization is known for one breakout project or for a broader repeatable portfolio.

The dominant language mix here is Java (16), TypeScript (5), Unknown (3). That makes this page useful not just for popularity checks, but also for seeing what technical shape an organization's public ecosystem actually has.

Source: GitHub API fallback. This is the same cache-first snapshot used by the organization ranking list, so the summary view and the detail view should stay aligned.

Top Repositories

#	Repository	Language	⭐ Stars	🍴 Forks	Updated
1	reactivex/rxjs A reactive programming library for JavaScript	TypeScript	31.7K	3K	1 years ago
2	reactivex/RxSwift Reactive Programming in Swift	Swift	24.7K	4.2K	3 weeks ago
3	reactivex/RxAndroid RxJava bindings for Android	Java	20K	2.9K	1 months ago
4	reactivex/RxGo Reactive Extensions for the Go language.	Go	5.1K	339	1 years ago
5	reactivex/rxdart The Reactive Extensions for Dart	Dart	3.4K	275	2 weeks ago
6	reactivex/RxPHP Reactive extensions for PHP	PHP	1.7K	142	3 weeks ago
7	reactivex/IxJS The Interactive Extensions for JavaScript	TypeScript	1.4K	72	11 months ago
8	reactivex/RxJavaFX RxJava bindings for JavaFX	Java	526	66	4 years ago
9	reactivex/RxRust The Reactive Extensions for the Rust Programming Language	Rust	496	34	11 years ago
10	reactivex/rxjs-tslint TSLint rules targeting RxJS	TypeScript	315	40	4 years ago
11	reactivex/RxJavaReactiveStreams Adapter between RxJava and ReactiveStreams	Java	236	30	8 years ago
12	reactivex/RxJavaDebug	Java	163	13	10 years ago
13	reactivex/rxjs-docs The home for new work on the new RxJS docs (RxJS v 5 and up). New to this space? Say hi here: https://github.com/ReactiveX/rxjs-docs/issues/24. Want to find out what's up? We're chatting here. https://github.com/ReactiveX/rxjs-docs/issues/4	TypeScript	161	60	7 years ago
14	reactivex/RxJavaAsyncUtil	Java	136	19	7 years ago
15	reactivex/RxJavaString	Java	130	20	9 years ago
16	reactivex/RxApacheHttp RxJava bindings for Apache HTTP	Java	120	29	9 years ago
17	reactivex/RxJavaJoins	Java	101	10	11 years ago
18	reactivex/RxSwing RxJava bindings for Swing	Java	101	19	9 years ago
19	reactivex/RxJavaMath Math operators for RxJava.	Java	99	15	9 years ago
20	reactivex/rxjs-advent-2018 RxJS 2018 Advent Calendar	TypeScript	89	11	7 years ago
21	reactivex/rxjs-core-notes Notes from RxJS core meetings		78	5	7 years ago
22	reactivex/RxJavaFileUtils File utilities with RxJava	Java	64	14	10 years ago
23	reactivex/RxJavaComputationExpressions	Java	61	6	10 years ago
24	reactivex/RxJavaParallel Experimental Parallel Extensions for RxJava	Java	55	10	11 years ago
25	reactivex/RxJavaGuava	Java	54	11	10 years ago
26	reactivex/Rx.NET Rx.NET – Reactive Extensions for .NET – a library for composing asynchronous and event-based programs using observable sequences for the CLR.		32	3	11 years ago
27	reactivex/RxQuasar RxJava bindings for Quasar	Java	16	3	10 years ago
28	reactivex/RxRoboVM RxJava bindings for iOS	Java	8	5	11 years ago
29	reactivex/BuildInfrastructure Test project for the new build system.	Groovy	6	5	11 years ago
30	reactivex/RxSwing2 Reactive bindings for Java 8 Swing on top of RxJava 2		5	2	9 years ago

Next step after the organization read

Open a flagship repository, compare a couple of portfolio leaders, or return to the organization map when you want a broader concentration read.

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Learn and methodology

Keep trust-building context reachable, but behind the first data read instead of ahead of it.

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How to Read This Snapshot

Total stars are useful as a discovery signal, but they do not tell you whether a team maintains every repository equally. Pair this page with release cadence, maintainer activity, and the flagship concentration shown above before making adoption decisions.

For broader background on GitStar's ranking logic and editorial guidance, see Methodology & Editorial Standards.