Top REACTIVE GitHub Repositories & Tools (2026)

A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

A declarative, efficient, and flexible JavaScript library for building user interfaces.

Cocoa framework and Obj-C dynamism bindings for ReactiveSwift.

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

A composable, cross-platform MVVM framework for .NET inspired by functional reactive programming. It moves mutable state out of the user interface, keeps each feature's logic in one readable place, and makes applications easier to test. Supports WPF, WinForms, WinUI, .NET MAUI, Avalonia, Uno Platform, Blazor and Android.

Java libraries for writing microservices

WarpDrive is the lightweight data library for ambitious web apps — universal, typed, reactive, and ready to scale.

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

Zero-cost & Type-safe Reactive Extensions for Rust. Supports both high-performance single-threaded (Local) and thread-safe (Shared) contexts. WASM & Tokio ready.

A networking framework that evolves with your application

Microservices library - scalecube-services is a high throughput, low latency reactive microservices library built to scale. It features: API-Gateways, service-discovery, service-load-balancing, the architecture supports plug-and-play service communication modules and features. built to provide performance and low-latency real-time stream-processing

A reactive API for Hibernate ORM, supporting non-blocking database drivers and a reactive style of interaction with the database.

:leaves: ReactiveMongo plugin for Playframework

SmallRye Reactive Messaging

Reactive HTML attributes. No build step, signals-based, CSP-safe.

A next-generation reactive media playback ecosystem for Apple platforms.

Modern MVVM framework on the C++23 baseline — cross-platform, layered, coroutine-first. Reactive DAG (Property/Computed/Effect), Task<T>, and pluggable adapters (Continuo-powered HTTP).

Kickstarter for iOS. Bring new ideas to life, anywhere.

Sound generates the terrain, tilt shapes the world, real-world time and weather shape the sky — a tiny living world for M5Stack Cardputer ADV.

Simple, scalable state management.