Articles

Essential Reads

• 2 Minute Introduction to Rx
• Learning Observable By Building Observable
• Observables, Reactive Programming, and Regret

Patterns & Best Practices

• RxJS Best Practices in Angular
• Automating RxJS Cleanup: How Halodoc Eliminated Angular Memory Leaks - world memory leak prevention at scale.
• Will Signals Replace RxJS?
• Angular & RxJS in 2025: The Expert's Playbook

Tutorials

• Testing RxJS Observables Just Became Super Simple - spy.

• Containers Are Dead. Long Live Observable Combinators - Matti Lankinen (Nov 2015)
• Angular - Introduction to Reactive Extensions (RxJS) - gsans (Sep 2015)
• A Dead-Simple Todo List with RxJS - Edan Schwartz (Sep 2015)
• Impossível errar com RxJS e Redux - BR) Tiago Miranda (Mar 2018)
• A Dead-Simple Todo List with RxJS - Edan Schwartz (Sep 2015)

Beyond the Basics

• RxJS Beyond the Basics: Creating Observables from scratch - Egghead series by André Staltz
• RxJS Beyond the Basics: Operators in Depth - Egghead series by André Staltz

Books

Angular-Specific Utilities

• RxJS in Action
• Build Reactive Websites with RxJS - on, project-based. From fundamentals to building a canvas game. By a senior engineer at Netflix.
• Reactive Programming with RxJS 5 - time earthquake visualization and a space shooter game.
• Reactive Patterns with RxJS and Angular Signals - by-step guide covering RxJS 7 and Angular Signals interop.
• RxJS Cookbook for Reactive Programming - world solutions for building async, event-driven web apps.
• The Illustrated Book of RxJS

Free Online Books

• Learn RxJS

Community

Conferences & Events

• This Dot Labs — RxJS Community

Discussion & Q&A

• RxJS GitHub Discussions
• ReactiveX Community Hub

Podcasts

• Software Engineering Daily — RxJS with Ben Lesh - depth interview about RxJS past, present, and future (Jul 2025).
• Adventures in Angular - angular, and reactive patterns.
• Angular Experts Podcast

• RxJS StackOverflow

Data & Persistence

Angular-Specific Utilities

• apollo-angular - ready GraphQL client for Angular with native RxJS integration. .valueChanges returns Observables.
• apollo-client-rxjs
• reactive-graphql

Debugging

Angular-Specific Utilities

• rxjs-spy

Examples

• Awesome example of combineLatest
• Awesome example of combineLatest

Frameworks Using RxJS

RxJS Version History

• Marble.js
• Angular - interop`.

Getting Started

• The introduction to Reactive Programming you've been missing
• Learnrx interactive operator tutorial
• Introduction to Reactive Programming - Egghead series by André Staltz for brand new to reactive programming
• Step-by-Step Async JavaScript with RxJS - Egghead series by John Lindquist
• Introducing the Observable - Egghead Series by Jafar Husain
• The Two Pillars of JavaScript — Pt 2: Functional Programming
• RxJS, Kefir and Bacon are "inspired by" FRP but not strict functional - Conal Elliott
• Learn RxJS - RxJS 5 descriptions, examples, and resources by Brian Troncone
• Reactive.how - Animated cards to learn Reactive Programming by Cédric Soulas
• Learnrx interactive operator tutorial
• Interactive diagrams of Rx Observables - André Staltz
• Learn RxJS - loved community resources.
• Introducing the Observable
• RxJS Marbles
• Reactive.how

Hot vs Cold Observables

• Paul Taylor
• Source: ReactiveX/RxJS#1121

Interactive Tools

Tutorials

• ThinkRx
• DevDocs — RxJS - capable API docs with instant search.

Libraries Built with RxJS

• WebRx - The Browser-based MVVM-Framework for ReactiveX-powered Single Page Applications.
• ds300/derivablesjs - Functional Reactive State for JavaScript and TypeScript
• garbles/yolk - 🥚 A library for building asynchronous user interfaces.
• bcoop713/routerx - A Router for RxJS and Cycle.js applcations
• ngrx/store - RxJS powered state management inspired by Redux for Angular2
• arkverse/lell - Reactive state, no boilerplate, just init and subscribe
• bcoop713/routerx - A Router for RxJS and Cycle.js applcations

Libraries & Utilities

Angular-Specific Utilities

• @ngneat/until-destroy

Framework-Agnostic

• rxjs-etc - bag of additional observables and operators for RxJS by Nicholas Jamieson. Includes combineLatestArray, debounceSync, concatMapEager, and more.
• rxjs-ninja
• backoff-rxjs
• rxjs-websockets - observable-based WebSocket library for RxJS. Supports browser and Node.js.
• rxjs-for-await - await for await...of loops via AsyncIterables by Ben Lesh.
• rxjs-ninja

Linting

Angular-Specific Utilities

• eslint-plugin-rxjs-x - floating-observables, no-async-subscribe, no-unsafe-switchmap, no-unsafe-takeuntil`, and more. The recommended choice for new projects.
• eslint-plugin-rxjs-angular-x - specific RxJS ESLint rules.
• @smarttools/eslint-plugin-rxjs
• eslint-plugin-rxjs

Official Resources

• ReactiveX/rxjs
• RxJS Operator Decision Tree
• RxJS API List
• rxjs.dev

Other Reactive Programming Libraries

• baconjs/bacon.js - FRP (functional reactive programming) library for Javascript.
• pozadi/kefir - FRP library for JavaScript inspired by Bacon.js and RxJS with focus on high performance and low memory consumption.
• cujojs/most - high performance FRP library.

People

The Builders

• Nicholas Jamieson (cartant) - plugin-rxjs, rxjs-spy, rxjs-marbles, rxjs-etc`, and more. Nicholas built the tooling layer that makes RxJS safer and more debuggable in production. The ecosystem owes him an enormous debt.
• Daniel Meyer (pubkey) - time, offline-first data management.
• Brandon Roberts - framework). Angular Google Developer Expert. A cornerstone of the Angular reactive ecosystem.
• Mike Ryan - creator of NgRx. Wrote the initial NgRx Store and Effects code that brought Redux-style reactive state management to Angular. Google Developer Expert.
• Alex Okrushko - rxjs. A driving force in the Angular reactive state management ecosystem.

The Community Champions

• Tracy Lee
• Jan-Niklas Wortmann
• Jason Weinzierl - plugin-rxjs-x`, ensuring the community has modern linting support for ESLint v9+.
• Shai Reznik - spy and HiRez.io. Made testing RxJS Observables dramatically simpler.
• Sergi Mansilla
• Randall Koutnik
• Deborah Kurata - conf talks on RxJS pipelines and reactive Angular components have guided thousands of developers toward better reactive patterns.
• OJ Kwon

The Educators

• Brian Troncone
• Cédric Soulas

• Ben Lesh @BenLesh - Lead Maintainer of RxJS 5
• André Staltz @andrestaltz - Creator of Cycle.js
• Jafar Husain @jhusain - Technical Lead at Netflix, used to work at microsoft on Rx
• Matt Podwysocki @mattpodwysocki - Works at Netflix with Jafar on ReactiveX stuff
• Erik Meijer @headinthebox - Functional Programming Wizard
• ReactiveX Offical Twitter - Official ReactiveX/Rx twitter
• David Sheldrick @djsheldrick - Creator of Derivables.js

React & RxJS

Framework-Agnostic

• observable-hooks - compatible, 100% test coverage. The recommended way to use RxJS with React. Compatible with RxJS 6 & 7.
• rxjs-hooks
• observable-hooks - compatible, 100% test coverage. The recommended way to use RxJS with React. Compatible with RxJS 6 & 7.

• FrintJS

References

• Online gitbook rx-book
• xgrommx/awesome-functional-programming

Related Reactive Libraries

Podcasts

• xstream
• Kefir.js
• Highland.js - thinking the JavaScript utility belt. Manages synchronous and asynchronous code using Node-like Streams. | Caolan McMahon |
• Callbags - pull streams. | André Staltz |

RxJS 5 vs RxJS 4

• ReactiveX/RxJS - (RxJS 5)
• Reactive-Extensions/RxJS - (RxJS 4)

State Management

Angular Ecosystem

• rx-angular - performance Angular applications by Michael Hladky and the Push-Based team. Includes @rx-angular/state, @rx-angular/template, @rx-angular/cdk, and @rx-angular/isr.
• Elf - shakeable and modular.
• Akita
• NgRx - powered state management for Angular, inspired by Redux. Includes @ngrx/store, @ngrx/effects, @ngrx/entity, @ngrx/component-store, and the newer @ngrx/signals (SignalStore). v21+ available.
• NGXS

Framework-Agnostic

• RxDB - -persistence).

React Ecosystem

• redux-observable - based middleware for Redux using "Epics" — functions that take a stream of actions and return a stream of actions. Created by Jay Phelps. In maintenance mode.

Talks

Foundational

• Async Programming in ES7

Modern

• dotJS 2024 — Ben Lesh
• 4 Wicked RxJS Pipelines for the Real World - conf 2021). Practical Subjects, creation functions, and higher-order mapping.
• Mastering the Subject: Communication Options in RxJS
• RxJS Schedulers from Outer Space
• dotJS 2024 — Ben Lesh

• Reactive JavaScript at Netflix, Microsoft and the World - Matthew Podwysocki (Dec 2015)
• What if the user was a function? - Andre Staltz (Jun 2015)
• Controlling Time and Space: understanding the many formulations of FRP - Evan Czaplicki (Sep 2014)

Testing

Angular-Specific Utilities

• RxJS TestScheduler - in marble testing with TestScheduler. The official way to test time-dependent Observable code.
• rxjs-marbles
• rx-sandbox - based test suite for RxJS. Provides visual diffs for debugging failed tests.
• observer-spy
• How to Easily Write and Debug RxJS Marble Tests

• How To Debug RxJS Code - Andre Staltz (Dec 2015)
• Testing reactive code - Dr. Gleb Bahmutov (Feb 2016)
• Testing your Rx application - RxJS documentation
• RxJs Testing in Real World Applications - Simon Jentsch (Feb 2016)

The Observable Standard

Podcasts

• TC39 proposal-observable
• WHATWG/WICG Observable
• TC39 proposal-signals

Video Courses

Free

• Thinking Reactively with RxJS
• Cycle.js Fundamentals
• Free RxJS Training by Ben Lesh
• State of RxJS Panels

Paid

• Ultimate RxJS Basics
• Asynchronous Programming in JavaScript