JSPM

Avoid timers throttling by browser when tab is inactive

Avoid timers throttling by browser when tab is inactive

The string_decoder module from Node core

Browser-friendly inheritance fully compatible with standard node.js inherits()

Array#isArray for older browsers

Converts a source-map from/to different formats and allows adding/changing properties.

Node.js Buffer API, for the browser

ES2015 `Object.assign()` ponyfill

Open stuff like URLs, files, executables. Cross-platform.

A simple activity monitor to alert you when the user becomes active or inactive

The Node.js `util.deprecate()` function with browser support

Determine if an object is a Buffer

Base class for node which OpenTelemetry instrumentation modules extend

An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

Public API for OpenTelemetry

OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.

Lightweight browser detector

A library for parsing IPv4 and IPv6 IP addresses in node and the browser.

Public logs API for OpenTelemetry

Universal WHATWG Fetch API for Node, Browsers and React Native

Microsoft Azure SDK for JavaScript - Aborter

Library to work against complex domain names, subdomains and URIs.

JavaScript library for DOM operations

JavaScript's functional programming helper library.

JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes

the path module from node core for browsers

Convert a typed array to a Buffer without a copy

atob for Node.JS and Linux / Mac / Windows CLI (it's a one-liner)

Get the default browser

Parse and stringify URL query strings

the stream module from node core for browsers

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

Better `os.arch()` for node and the browser -- detect OS architecture

High performance (de)compression in an 8kB package

A simple, lightweight JavaScript API for handling cookies

Get the bundle identifier of the default browser (macOS). Example: com.apple.Safari

Parse milliseconds into an object

The assert module from Node.js, for the browser.

HTML5 `FormData` for Browsers and Node.

Decode JWT tokens, mostly useful for browser applications.

A better opn. Reuse the same tab on Chrome for 👨‍💻.

Minimal lightweight logging for JavaScript, adding reliable log level methods to any available console.log methods

Random number generator for browsers and node.js

the tty module from node core for browsers

vm module for the browser

A polyfill for the Resize Observer API

Isomorphic implementation of WebSocket

Compare semver version strings to find greater, equal or lesser.

Node's domain module for the web browser. This is merely an evented try...catch with the same API as node, nothing more.

node's constants module for the browser

Lazy assertions without performance penalty

timers module for browserify

https module compatability for browserify

Promisify an event by waiting for it to be emitted

Microsoft Azure SDK for JavaScript - Logger

JSON without touching any globals

Converts a Web-API readable-stream into a Node.js readable-stream.

Toggle current selected content in browser

OpenTelemetry Collector Trace Exporter allows user to send collected traces to the OpenTelemetry Collector

Copy stuff into clipboard using JS with fallbacks

Cypress is a next generation front end testing tool built for the modern web

An alias package for `crypto.randomBytes` in Node.js and/or browsers

Isomorphic client library for supporting long-running operations in node.js and browser.

resolve which handles browser field support in package.json

OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

btoa for Node.JS (it's a one-liner)

Framework-agnostic, micro-library for getting stack traces in all environments

OpenTelemetry Zipkin Exporter allows the user to send collected traces to Zipkin.

Get a KeyboardEvent.key-style string from an event

OpenTelemetry Collector Metrics Exporter allows user to send collected metrics to the OpenTelemetry Collector

OpenTelemetry Collector Logs Exporter allows user to send collected logs to the OpenTelemetry Collector

Tiny and elegant HTTP client based on the Fetch API

Microsoft Azure Storage SDK for JavaScript - Blob

Check if a value is a natural number

Cross-browser `CustomEvent` constructor

Apple's property list parser/builder for Node.js and browsers

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

JavaScript SVG parser and renderer on Canvas.

Low-Level OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

A package that contains an array of every single file extension there is for text files

Isomorphic WebSocket

LRU and FIFO caches for Client or Server

HKDF with no dependencies using runtime's native crypto

Plugin for loglevel message prefixing

A JavaScript library to zip and unzip files in the browser, Deno and Node.js

(recursive)? merging of (cloned)? objects.

Serializes any DOM node into a String

Simple wrapper for cross-browser usage of the JavaScript Fullscreen API, which lets you bring the page or any element into fullscreen.

Tests if ES6 Symbol is supported.

React's ExecutionEnvironment module extracted for use in other packages & components

Dynamic script loading for browser

browser-side require() the node way

A package that contains an array of every single file extension there is for binary files

🔥 An extremely fast and efficient LRU cache for JavaScript with high compatibility (including Browsers) — 6.8KB.

A tool to get browser's scrollbars width.

Determine if a filename and/or buffer is text or binary. Smarter detection than the other solutions.

DOMParser.parseFromString for XML with IE8 fallback

Topological sort of directed acyclic graphs (like dependecy lists)

Adds console.table method that prints an array of objects as a table in console

Check whether operating system CPU architecture is 64-bit or 32-bit (Supports browsers)

Tests if ES6 @@toStringTag is supported.

Smallest/simplest possible means of using btoa with both Node and browserify

Simple JS stack with auto run for node and browsers

Isomorphic client library for Azure KeyVault's keys.

Image structural similarity (SSIM). In TypeScript/JavaScript. For browser/server.

Check in which environment the code is running - browser/node.js/webworker/jsdom/deno

Extends Chai with assertions about promises.

A tiny (230B) and fast UUID (v4) generator for Node and the browser

walk the dependency graph to generate json output that can be fed into browser-pack

Array#filter for older browsers.

sort module-deps output for deterministic browserify bundles

Creates an async iterator for a variety of inputs in the browser and node. Supports fetch, node-fetch, and cross-fetch

A generated SDK for WebSiteManagementClient.

Super light and fast Extensible ES6+ events and EventEmitters for Node and the browser. Easy for any developer level, use the same exact code in node and the browser. No frills, just high speed events!

Unpack a browser type and version from the useragent string

A high-performance, lightweight LRU cache. Built for developers who need fast caching without compromising on features.

Node standard library for browser.

Browser compatibility data provided by MDN Web Docs

Detect default web browser of the current user, cross-platform (Win/Lin/Mac)

XMLHttpRequest emulation for node.js

Provides access to the system's web browser and supports handling redirects. On iOS, it uses SFSafariViewController or ASWebAuthenticationSession, depending on the method you call, and on Android it uses ChromeCustomTabs. As of iOS 11, SFSafariViewControl

Flmngr file manager (Local disk / Amazon S3 / Azure Blob)

pack node-style source files from a json stream into a browser bundle

Get the paths of edge browser easily

Light-weight EventEmitter (less than 1KB when gzipped)

Extends Chai with assertions for the Sinon.JS mocking framework.

Detect device type and render your component according to it

Isomorphic client Runtime for Typescript/node.js/browser javascript client libraries generated using AutoRest

Create a MD5 hash with hex encoding

Analyze and debug space usage through source maps

A generated SDK for ResourceManagementClient.

tap-producing test harness for node and browsers

File manager plugin for CKEditor 5

Minimal JavaScript module loader

Mouse wheel normalization across multiple multiple browsers.

Library to work against complex domain names, subdomains and URIs. Only contains ICANN section.

Tiny local JSON database for Node, Electron and the browser

A client for working with the BrowserStack APIs.

Cross Platform implementation of the GitLab API

OpenTelemetry instrumentation for fetch http client in web browsers

Check if mobile browser.

Fastest, most accurate & effecient user agent string parser, uses Browserscope's research for parsing

Browser port of the Node.js 'request' package

Check version ranges like `>=N` and `X || Y || Z` with support for Node.js, Web Browsers, Deno, and TypeScript.

OpenTelemetry instrumentation for XMLHttpRequest http client in web browsers

Simple JS queue with auto run for node and browsers

Simple JS queue with auto run for node and browsers

A Minimalistic Wrapper for IndexedDB

Promptbook: Run AI apps in plain human language across multiple models and platforms

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.

HMAC-based (HOTP) and Time-based (TOTP) One-Time Password library

Test whether value is error object

Isomorphic client library for Azure KeyVault's secrets.

Copy text to the clipboard in modern browsers (0.2 kB)

Javascript audio library for the modern web.

Lint browser compatibility of API used

Detect default web browser of the current user, cross-platform (Win/Lin/Mac)

Open a URL via the operating system (http: in default browser, mailto: in mail client etc.

Give your JS App some Backbone with Models, Views, Collections, and Events.

Smallest/simplest possible means of using atob with both Node and browserify

Logger Utils

Browser fingerprinting library with the highest accuracy and stability

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data. Supports browser & node.js environment

A function to get the scrolling parent of an html element.

An extended Error class that envelops a parent error, such that the stack trace contains the causation

strings comparison matchers for chai

The speed of a single-page web application without having to write any JavaScript

watch mode for browserify builds

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

`[].map(f)` for older browsers

TaffyDB is an opensouce library that brings database features into your JavaScript applications.

Cross platform environment variables with process.env, window.name, location.hash and localStorage fallbacks

Google's libphonenumber pre-compiled with the closure compiler

Environment utilities

the part of vue-inbrowser-compiler-utils that contains no vue dependency

The official Fullstory browser SDK

Lightweight copy to clipboard for the web

A modern logging library for Node.js and modern browsers that provides log level mapping to the console

Lint CSS for browser support against caniuse database

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

A pure JavaScript client for the tus resumable upload protocol

Compress images in the browser

Lightning fast hash functions for browsers and Node.js using hand-tuned WebAssembly binaries (MD4, MD5, SHA-1, SHA-2, SHA-3, Keccak, BLAKE2, BLAKE3, PBKDF2, Argon2, bcrypt, scrypt, Adler-32, CRC32, CRC32C, RIPEMD-160, HMAC, xxHash, SM3, Whirlpool)

A javascript scrollbar plugin that hides the native scrollbars, provides custom styleable overlay scrollbars, and preserves the native functionality and feel.

Disallow features that are unsupported by the browsers that you are targeting

Auto mock all localstorage and sessionstorage APIs for your Jest tests

Extend Chai Assertion library with tests for http apis

Morph a DOM tree to another DOM tree (no virtual DOM needed)

Node's path builtin module exposed as dual ESM/CJS and browser-compatible out of the box.

Microsoft Azure Storage SDK for JavaScript - Queue

UI utilities

small function to append a query string to a URL

Automatically opens your browser and iOS Simulator to preview Node.js email messages sent with Nodemailer. Made for Forward Email and Lad. Cross-browser and cross-platform email testing.

browserify compatible version of the ace editor.

Small module for fitting a canvas element within the bounds of its parent.

AWS X-Ray ID generator for OpenTelemetry

Chromium Binary for Serverless Platforms

tiny http client for Node and the browser

Consistent cross browser mouse wheel movement

provides locking mechanism to sync across browser tabs

Normalize browsers' default style

A companion library to openai for Azure OpenAI.

It is a lightweight rest client for node.js and the browser

Check if a value is a `Blob`

Tiny hashing module that uses the native crypto API in Node.js and the browser

Check if browser is Internet Explorer

Manage unstructured data using DataSet. Add, update, and remove data, and listen for changes in the data.

Get the size of an element in pixels, including margins

Check if browser is Firefox

Automated browser testing for the modern web development stack.

Populate a <canvas> element with a font texture atlas

Faro instrumentations, metas, transports for web.

Cascading grid layout library

Test'em 'scripts! Javascript Unit testing made easy.

JavaScript barcode generator supporting over 100 types and standards.

Mouse wheel normalization across multiple multiple browsers.

Faro web tracing implementation.

Chai plugin for JSON Schema v4

ExpressJS/Connect/TrinteJS user-agent middleware exposing

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

memlab API

<!-- markdownlint-disable MD024 -->

memlab browser E2E interaction libraries

A jQuery plugin that adds cross-browser mouse wheel support.

A cross-browser wrapper for the Web Audio API which aims to closely follow the standard.

Fast client-side asset builder

Copy to clipboard.

A generated SDK for StorageManagementClient.

An extremely fast, React-like JavaScript library for building modern user interfaces

Fingerprint JavaScript agent

Javascript string formatter for human readability

Device detection (phone, tablet, desktop, mobile grade, os, versions)

A regular expression that matches a CHANGELOG filename

Read `*.xlsx` files of moderate size in a web browser or on a server.

Strictly typed EventTarget that directly extends EventTarget to function as a drop-in replacement. It works with all Event-Types and accounts for basically no additional bundle-size.

Render React components in Vitest Browser Mode

Emscripten distribution of libheif for Node.JS and the browser

React component to wrap your application or component in an iFrame for encapsulation purposes

Auth0 headless browser sdk

return all coordinates from a geojson object

A lightweight library to decode and verify RS JWT meant for the browser.

Isomorphic/Universal WHATWG URL API with some support legacy node URL API

React hooks done right, for browser and SSR.

Bitcoin Cash cashaddr address format support for Node.js and web browsers.

get webrtc browser methods unprefixed

Advanced HTTP requests in node.js and browsers

A generated SDK for ContainerInstanceManagementClient.

Base draggable class