JSPM

Minimal async jobs utility library, with streams support

Abstract streams to deal with the whole buffered contents.

Monadic streams

Convert Node.js streams to streaming iterables

Foundation for async iterators as streams

Allows libraries to handle various caller provided asynchronous functions uniformly. Maps promises, observables, child processes and streams, and callbacks to callback style.

An alternantive to EventEmitter using consumable streams.

Uint8Array async iterator adapters for Node.js streams

A collection of utilities for async iterables. Designed to replace your streams.

Convert push-based streams to pull-based async iterables

StreamQueue pipe the queued streams one by one in order to preserve their content order.

Fast Async Iterator for browser Readable Streams.

Create handshakes for binary protocols with iterable streams

Dependency-free streams utils for Node.js

Pipe ES6 Async Generators through Node.js Streams

Convert push-based streams to pull-based async iterables (fork of queueable)

Mix Async/Sync code with Promises and Streams in a reusable unified line

Reactive streams & subscription primitives for constructing dataflow graphs / pipelines

An async version of through2-map -- async Array.prototype.map for streams

A comprehensive collection of helper methods for WebStreams with built-in backpressure support, inspired by ReactiveExtensions

Handles completion and errors for sync, callbacks, promises, observables and streams.

A map function for Web Streams with concurrency support. Like node's ReadableStream.map(), but for Web Streams.

Turn a writable and readable stream into a streams2 duplex stream with support for async initialization and streams1/streams2 input

Parallel transform for web streams. Zero dependencies.

A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.

**_Node.js core streams for userland_**

Most.js based middleware for Redux. Handle async actions with monadic streams and reactive programming.

Create Most.js Streams from async iterables

Asynchronously recursive, pure function <3 via lazy streams.

Create async iterators from Arrays, EventEmitters, and Streams

A promise based streaming tokenizer

A collection of streams that work well with promises (through, map, reduce). Think Through2 with promises

Small, parallel and fast test framework with suppport for async/await, promises, callbacks, streams and observables. Targets and works at node.js v0.10 and above.

Convert RxJS Observable streams to async iterators

Map over promises concurrently

A set of utilities that extend the use of JSON

Efficient way of connecting disparate streams

Handle completion and errors with elegance! Support for streams, callbacks, promises, child processes, async/await and sync functions. A drop-in replacement for [async-done][] - pass 100% of its tests plus more

32 bit unsigned host byte order length prefix message streams as async iterators

Settle an async function.

Parallelized transform streams for everyone!

An async iterator that joins multiple other async iterators in order, one after another.

A Promise-based interface into processes created by child_process.spawn

A consumable stream demultiplexer.

Zip/Tar a complete folder or a glob list into a zip/tgz file

Write data to a file, replacing the file if it already exists and creating any intermediate directories if they don't already exist. Thin wrapper around node's native fs methods.

Lightweight and real-time data functional stream programming framework like event-stream, written in ES6 using async await with multi-threading and typescript support

Run multiple promise-returning & async functions with limited concurrency

Get the first fulfilled promise that satisfies the provided testing function

Compose your async functions with elegance.

Higher-order functions and common patterns for asynchronous code

A tiny library designed to parallel or series chain streams, promises or functions with callbacks.

Promisify a callback-style function

Fast, in memory work queue

Fast, easy and dynamic tokenizer for Node Streams

Runtime for Regenerator-compiled generator and async functions.

`Start a promise chain

Utility to "pipe" async iterables together

Run an array of functions in parallel

Allows users to use generators in order to write common functions that can be both sync or async.

JavaScript parser, mangler/compressor and beautifier toolkit for ES6+

A utility to retry failed async methods.

Open Node Streams on demand with async support (original code from https://github.com/jpommerening/node-lazystream)

Neo-Async is a drop-in replacement for Async, it almost fully covers its functionality and runs faster

Utility method to run function either synchronously or asynchronously using the common `this.async()` style.

Simple and modern async event emitter

generator async control flow goodness

An asynchronous yieldable version of JSON.stringify and JSON.parse

Full featured Promises/A+ implementation with exceptionally good performance

Determine if a function is a native async function.

Create a promise that can be canceled

A function that returns the normally hidden `AsyncFunction` constructor

Streaming length prefixed buffers with async iterables

Universal WHATWG Fetch API for Node, Browsers and React Native

Retry a promise-returning or async function

Timeout a promise after a specified amount of time

Explode async and generator functions into a state machine.

A basic but performant promise implementation

SaveStream: Effortlessly save and store streams in your web browser. Optimal memory management for large data, seamless integration, and secure reliability. Upgrade your web apps today and unlock the power of efficient stream saving.

delay the evaluation of a paramless async function and cache the result

elegant & feature rich browser / node HTTP with a fluent API

FTP client for Node.js, supports FTPS over TLS, IPv6, Async/Await, and Typescript.

Contain async insanity so that the dark pony lord doesn't eat souls

asynchronous function queue with adjustable concurrency

nodejs streams using async/await functions

Create a deferred promise

Promise queue with concurrency control

Environment agnostic nextTick polyfill

Async npm module for Node JS that reads the first line of a file

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

Check if something is a promise

Reduce a list of values using promises into a promise for a value

Promisify an event by waiting for it to be emitted

Delay a promise a specified amount of time

No-bullshit, ultra-simple, 35-lines-of-code async parallel forEach / map function for JavaScript.

Transform async functions to generator functions with speed and simplicity.

Iterate over promises serially

asynchronous function queue with adjustable concurrency

Isomorphic, functional type-checking for Javascript

A library of async iterator extensions for JavaScript including ```map```, ```reduce```, ```filter```, ```flatMap```, ```pipe``` and [more](https://github.com/jamiemccrindle/axax/blob/master/docs/API.md#functions).

Filter promises concurrently

Run some code when the process exits

Big-friendly JSON. Asynchronous streaming functions for large JSON data sets.

Memoize/cache function results

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Distributed task scheduler and rate limiter

A mutex for guarding async workflows

Lock on asynchronous code

Inspect the life of handle objects in node

Map over an array or object of values in parallel or series, passing each through the async iterator, with optional lifecycle hooks.

Create sync/async APIs with usable logic

Asynchronous bootstrapping of Node applications

Concat all buffers/strings yielded from an async iterable into a single BufferList/string

`net.Server#listen()` helper that returns a Promise for async / await

Run multiple promise-returning & async functions with limited concurrency using native ES9

Semaphore using `async` and `await`

Native Promise Only: A polyfill for native ES6 Promises **only**, nothing else.

Map over promises serially

Wait for a condition to be true

Compose promise-returning & async functions into a reusable pipeline

A JavaScript extension package for building strong and modern applications.

Throttle promise-returning & async functions

Run some code when the process exits (supports async hooks and pm2 clustering)

`AsyncIterator.prototype`, or a shared object to use.

Watch globs and execute a function upon change, with intelligent defaults for debouncing and queueing.

Extends Chai with assertions about promises.

validate form asynchronous

Async module-loading library and protocol for bundlers/loaders targeting isomorphic apps and Node.js.

Wait for multiple callback

Run an array of functions in series

Run promise-returning & async functions in series, each passing its result to the next

Take care of your `spawn()`

`timers/promises` for client and server.

Run promise-returning & async functions concurrently with optional limited concurrency

An optionally-asynchronous forEach with an interesting interface.

Modular and fast Promises implementation

Memoize promise-returning & async functions

Run an array of functions in parallel, but limit the number of tasks executing at the same time

A simple asynchronous tool

The scrypt password-based key derivation function with sync and cancellable async.

Execute an async function per stream data event, pausing the stream when a concurrency limit is saturated

A lightweight Promises/A+ and when() implementation, plus other async goodies.

Convert any object to thenable

Promisified setTimeout

Runs a list of async tasks, passing the results of each into the next one

The JavaScript Task Runner

Wait for any promise to be fulfilled

Async/await wrapper for easy error handling in js

A node- and browser-ready async (now with promises) counterpart of Array.prototype.forEach

Modern and scalable routing for React applications

In memory queue system prioritizing tasks

Modern and scalable routing for React applications

Apply an async function to each Array element in series.

Wait for expectation to be true, useful for integration and end to end testing

An utility belt for working with streams using async iterators

Modern and scalable routing for React applications

Settle promises concurrently and get their fulfillment value or rejection reason

Wait for a specified number of promises to be fulfilled

Coalesces multiple promises for the same identifier into a single request

support for asynchronous development with a Promise based task Scheduler, several different Promise implementations (synchronous, idle, asynchronous and native runtime wrappers), await helpers, and aliases all built and tested using TypeScript.

a runtime interface

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Inspired by Akka Streams, a library for processing infinite streaming data.

Abortable async function helpers

Map-like, concurrent promise processing for Node.js

Make a promise always fulfill with its actual fulfillment value or rejection reason

Node.js test runner that lets you develop with confidence.

Turns async function into sync via JavaScript wrapper of Node event loop

Modern and scalable routing for React applications

YouTube IFrame Player API abstraction.

Make array iteration easy when using async/await and Promises

Parser for FTP server responses

async.mapLimit's functionality available as a standalone npm module

Modern and scalable routing for Web applications

A sane FTP client implementation for NodeJS

Oboe.js reads json, giving you the objects as they are found without waiting for the stream to finish

Bundle results of async functions calls into one callback with all the results

Resolve a path by walking parent directories.

Creates a value/error pair to mimic promise behavior

Test whether a path exists on the filesystem.

Async/await error handling support for expressjs

Read the entire contents of a file.

An implementation of Domain-like error handling, built on async_hooks

The fastest key/value storage for React Native. ~30x faster than AsyncStorage! Works on Android, iOS and Web.

Get the arguments of a function, arrow function, generator function, async function

Modern version of setInterval for promises and async functions available in Node.js and browsers.

Async value container

Add a callback to the next tick queue.

Efficient stream sharing for most.js

Zero-overhead asynchronous parallel/each/map function call

Transform streams with async functions, preserving order

Evaluate asynchronous tasks with configurable concurrency.

Zero-overhead asynchronous series/each/map function calls

Cancelable Async Flows: a wrapper to treat generators as cancelable async functions

Flush promises in tests

RxJS based middleware for Redux. Compose and cancel async actions and more.

Automated browser testing for the modern web development stack.

An event emitter implementation with async support in mind

Automagically generates command-line interfaces (CLI) for any module. Expected options and help sections are created automatically based on parameters names, with support to async. It can be installed globally, in order to *execute* any module, or .js fil

Loading wrapper and TypeScript types for the PayPal JS SDK

call your callbacks in a waterfall, at speed

Transform async/await to promise chains

Modern and scalable routing for React applications

Debounce promise-returning & async functions

Library that can be used to retry functions that return promise

A simple and non-blocking PNG encoder / decoder.

A module for sequencing and executing tasks and dependencies in maximum concurrency

Make bluebird work with the continuation-local-storage module.

Tiny async loader for modern browsers

Maintained fork of later. Determine later (or previous) occurrences of recurring schedules

Mutex locks for async functions

Asynchronous flow control with a functional taste to it

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

A plugin for the Acorn parser that understands the ES7 keywords async and await

Chainable asynchronous flow control with sequential and parallel primitives and pipeline-style error handling

A lightweight promise library

horsepower for your modules

Fast, reliable cipher, hash and hmac methods executed in Node's threadpool for multi-core throughput.

Simple, consistent sync or async process spawning

SQLite client for Node.js applications with SQL-based migrations API written in Typescript

Caching DNS resolve

Make streams thenable

Express Error Handler for Async Functions

A tiny version of Golang's WaitGroup with typings, promises, and zero dependencies.

ES7 async-await wrapper for the csv package.

Asynchronous Array Utilities (for await)

async parallellimitmethod as module.

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

Parse ePub electronic book files with Node.JS

seriously like the best async child process library

Read or write to a stream using while and await, not event handlers.

The next generation of events handling for javascript! New: abstract away the network!

Wrapper above react-select that supports pagination on menu scroll

Just like EventEmitter, but with support for callbacks and interuption of the listener-chain

Parse a function into an object using espree, acorn or babylon parsers. Extensible through Smart Plugins

A lean Promises and Async lib for ES6/ES7

Simply gzip and ungzip in Node.js with promises

Generic browser priority queue.

Create a lazy promise that defers execution until it's awaited or when `.then()`, `.catch()`, or `.finally()` is called

Promisify any of: callback function, sync function, generator function, promise-returning function

co with bluebird promises

Async hook

Test whether all promises passes a testing function

Retry a promise-returning or async function

Better Queue for NodeJS

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Cooperative multi-tasking for Javascript

Convert event emitters and event targets to ES async iterators

Async middleware for JavaScript and TypeScript