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Top 23 TypeScript Rxj Projects
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Reactive streams, either functional (E.G.: RxJS) or imperative (E.G.: Callforwards) or something in between (E.G.: Signals). We'll stick with functional, as the whole paradigm is known to be far superior and we don't want to bulid 💩.
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I’m doing offline-first apps at work and want to emphasize that you’re constraining yourself a lot trying to do this.
As mentioned, everything fast(ish) is using SQLite under the hood. If you don’t already know, SQLite has a limited set of types, and some funky defaults. How are you going to take this loosey-goosey typed data and store it in a backend database when you sync? What about foreign key constraints, etc., can you live without those? Some of the sync solutions don’t support enforcing them on the client.
Also, the SQLite query planner isn’t great in my experience, even when you’re only joining on ids/indexes.
Document databases seem more friendly/natural, but as mentioned indexeddb is slow.
I wish this looked at https://rxdb.info/ more. They have some posts that lead me to believe they have a good grasp on the issues in this space at least
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Project mention: Exploring the Benefits of Functional Reactive Programming in JS | dev.to | 2025-06-27
Cycle.js Documentation
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Angular: ngRx
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Marble.js
Marble.js - functional reactive Node.js framework for building server-side applications, based on TypeScript and RxJS.
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Netanel Basal Explains new and more intermediate concepts hands-on.
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I used ngxtension for the demo for brevity, but the result is the same.
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Playwright version 1.48 was also released, introducing support for mocking WebSockets communication. However, the long-anticipated Component Tester for Angular was closed without being merged, meaning there is still no official component testing in Playwright. Community solutions exist, such as those from Younes Jaaidi and Sander, but the decision has caused a stir in the Angular community.
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bloc.js
A predictable state management library that helps implement the BLoC design pattern in JavaScript
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lyricstify
Command line based application to show synchronized Spotify lyrics in your terminal with romanization and translation support. Built with Node.js, TypeScript, NestJs, and RxJs.
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Rxjs discussion
TypeScript Rxjs related posts
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7 Basic Git Commands
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Exploring the Benefits of Functional Reactive Programming in JS
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A Stream-Oriented App — building in public
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State Management in Front-end Web Development: State 101
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Why I’m Learning Vue.js After Six Years in React
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Frontend at Scale: Building Maintainable Enterprise Apps with Angular
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Turn React Hooks into LLM Tools and Contexts
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A note from our sponsor - Sevalla
sevalla.com | 1 Sep 2025
Index
What are some of the best open-source Rxj projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | RxJS | 31,433 |
| 2 | RxDB | 22,608 |
| 3 | Cycle.js | 10,248 |
| 4 | platform | 8,245 |
| 5 | angularfire | 7,785 |
| 6 | rxjs-hooks | 2,188 |
| 7 | Marble.js | 2,138 |
| 8 | ReactiveTraderCloud | 1,848 |
| 9 | until-destroy | 1,751 |
| 10 | elf | 1,659 |
| 11 | observable-hooks | 1,047 |
| 12 | focal | 729 |
| 13 | remesh | 713 |
| 14 | ngxtension-platform | 716 |
| 15 | react-rxjs | 576 |
| 16 | geofirex | 485 |
| 17 | observer-spy | 377 |
| 18 | state-adapt | 305 |
| 19 | devkit | 263 |
| 20 | rx-query | 201 |
| 21 | bloc.js | 193 |
| 22 | fp-ts-rxjs | 189 |
| 23 | lyricstify | 188 |
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