46 projects
Angular
Angular is a TypeScript-based web application framework developed by Google for building dynamic, single-page applications with a structured, component-driven architecture.
22,109
3,499
$37M
Tokio
Tokio is an asynchronous runtime for the Rust programming language that enables building reliable network applications. It provides a platform for writing fast, non-blocking network services with features like async I/O, timers, scheduling, and concurrency primitives.
3,860
1,271
$3.4M
Tornado Web Server
Tornado is an open-source Python web framework and asynchronous networking library that uses non-blocking network I/O to scale to tens of thousands of open connections. It powers asynchronous web applications and services with its coroutine-based design.
2,608
791
$1.4M
Ktor
Ktor is an asynchronous web framework for building connected applications in Kotlin, enabling development of server-side and client-side applications. It provides a flexible, extensible architecture for creating web applications, APIs, and microservices with built-in support for coroutines.
2,392
598
$6.3M
Hyperf
🚀 A coroutine framework that focuses on hyperspeed and flexibility. Building microservice or middleware with ease.
2,222
186
$10M
ZIO
ZIO is a type-safe, composable library for asynchronous and concurrent programming in Scala. It provides a powerful effect system for building scalable, resilient applications with built-in error handling, resource management, and high performance.
2,043
379
$7M
Axum
Ergonomic and modular web framework built with Tokio, Tower, and Hyper
1,967
625
$1.2M
Bluebird
Bluebird is a full-featured Promise library for JavaScript that offers superior performance and extra features compared to native Promises. It provides extensive async programming capabilities including coroutines, promisification of callback APIs, cancellation, and detailed error handling.
1,716
709
$1.6M
gevent
Coroutine-based concurrency library for Python
1,627
563
$13M
Reactor Netty
Reactor Netty is a non-blocking and event-driven network application framework built on top of Netty, providing reactive streams backpressure-ready network engines for HTTP (including WebSockets), TCP, and UDP. It enables building fast and efficient network applications using reactive programming patterns.
1,445
267
$3.2M
futures-rs
Futures-rs is a zero-cost asynchronous programming library for Rust that provides core abstractions and utilities for async/await syntax and asynchronous computation. It implements traits and types for working with asynchronous operations in a composable way.
1,352
523
$1M
Reactor Core
Reactor Core is a foundational library for building reactive applications on the JVM, providing non-blocking message-passing and backpressure support through reactive streams. It implements the Reactive Streams specification and offers composable asynchronous sequence APIs through its Flux and Mono types.
1,331
298
$12M
Mio
Mio is a low-level I/O library for Rust that provides a cross-platform abstraction over operating system event notification mechanisms like epoll, kqueue, and IOCP. It serves as a foundation for asynchronous I/O operations in Rust applications.
974
374
$456K
Async
Async is a JavaScript utility library that provides functions for working with asynchronous code, including managing control flow, collections, and concurrency patterns. It helps simplify complex asynchronous operations through functions like series, parallel, waterfall, and queue.
949
349
$6.2M
Seastar
High performance server-side application framework
831
169
$3.9M
Cats Effect
Cats Effect is a pure functional runtime system for Scala that provides composable asynchronous and concurrent programming capabilities. It implements an IO monad and offers abstractions for managing effects, resource handling, and concurrent computations in a purely functional way.
803
240
$1.5M
liburing
liburing is a library that provides a fast and efficient interface for Linux io_uring asynchronous I/O operations. It offers a simplified API for applications to leverage the kernel's io_uring subsystem for high-performance I/O operations, including file operations, network I/O, and other asynchronous tasks.
741
220
$2M
Trio
Trio is a Python library for async concurrency and I/O that emphasizes usability and correctness through its structured concurrency model. It provides tools for writing reliable async code including cancellation, timeouts, and resource management.
660
229
$1.5M
Wangle
Wangle is a C++ networking library built on top of Facebook's folly library that provides a high-performance asynchronous client/server framework. It implements common client/server protocols and offers abstractions for writing custom network services.
658
68
$1.1M
asgiref
ASGI (Asynchronous Server Gateway Interface) reference implementation and utilities library that provides a standard interface between async-capable Python web servers, frameworks, and applications
412
174
$142K
AnyIO
AnyIO is a high-level asynchronous I/O and networking library that provides a unified interface for working with different async backends (asyncio, trio) in Python. It enables writing backend-agnostic async code that can run on any supported event loop implementation.
370
152
$748K
Mutiny
Mutiny is a reactive programming library for Java that provides a modern API for asynchronous programming. It offers a declarative approach to handle streams of data and events, with support for backpressure and composable operations.
293
55
$3.1M
Async Ruby
An awesome asynchronous event-driven reactor for Ruby.
211
96
$373K
EventEmitter3
EventEmitter3 - Because there's also a number 2. And we're faster.
205
80
$44K
fastq
Fast, in memory work queue
92
34
$43K
Libuv
Libuv is a multi-platform support library with a focus on asynchronous I/O.
28
1
Actix Net
A collection of lower-level libraries for composable network services.
Atmosphere Framework
Event Driven WebSockets Framework with Cross-Browser Fallbacks
Embassy
Modern embedded framework, using Rust and async.
EventMachine
EventMachine: fast, simple event-processing library for Ruby programs
Libevent
Event notification library
Lwt
OCaml promises and concurrent I/O
Mitt
🥊 Tiny 200 byte functional event emitter / pubsub.
Neo-Async
Neo-Async is thought to be used as a drop-in replacement for Async, it almost fully covers its functionality and runs faster
Sanic
Accelerate your web app development | Build fast. Run fast.
Sniffio
Sniff out which async library your code is running under
SwiftNIO
Event-driven network application framework for high performance protocol servers & clients, non-blocking.
Tonic
A native gRPC client & server implementation with async/await support.
Tower HTTP
Asynchronous HTTP body trait
Userver
Production-ready C++ Asynchronous Framework with rich functionality
aiobotocore
asyncio support for botocore library using aiohttp
async-graphql
A GraphQL server library implemented in Rust
asyncio timeout
asyncio-compatible timeout class
pytest-asyncio
Asyncio support for pytest