JSPM

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

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

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

High Level DOM Assertions for QUnit

React Browser Tests is a browser first testing library. The tests are written in React and run in a browser. Terminal also works.

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

date / time comparison matchers for chai

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

Get a KeyboardEvent.key-style string from an event

OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

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

Microsoft Azure Storage SDK for JavaScript - Blob

Cross-browser `CustomEvent` constructor

Check if a value is a natural number

Tiny and elegant HTTP client based on the Fetch API

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

Check if a value is an `Error` instance

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

JavaScript SVG parser and renderer on Canvas.

Isomorphic WebSocket

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

Adapter that integrates @serenity-js/web with the latest stable version of WebdriverIO, enabling Serenity/JS reporting and using the Screenplay Pattern to write web and mobile test scenarios

DOM assertions for the Chai assertion library using vanilla JavaScript

The Backbone Framework

Spies for the Chai assertion library.

LRU and FIFO caches for Client or Server

The node.js assert module, re-packaged for web browsers.

Detects where the current browser extension code is being run. Compatible with Firefox, Chrome and derivates.

UMD __dirname and __filename browser shim

Dynamic script loading for browser

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

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

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

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

Serializes any DOM node into a String

Topological sort of directed acyclic graphs (like dependecy lists)

browser-side require() the node way

An implementation of https://github.com/emberjs/rfcs/pull/726

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

Shallow deep equal assertion for chai

DOMParser.parseFromString for XML with IE8 fallback

HKDF with no dependencies using runtime's native crypto

A tool to get browser's scrollbars width.

Plugin for loglevel message prefixing

Extends Chai with lint-friendly terminating assertions.

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

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

Tests if ES6 @@toStringTag is supported.

Tests if ES6 Symbol is supported.

All-in-one open source e2e testing framework, with low-code recorder, runner + batteries built-in.

A framework for mocking the FileMaker webviewer window object for developing and testing fm webviewer apps in browser.

Isomorphic client library for Azure KeyVault's keys.

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

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

sort module-deps output for deterministic browserify bundles

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

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

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

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

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

A generated SDK for WebSiteManagementClient.

LambdaTest Rest Client for Node.js

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

Array#filter for older browsers.

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

XMLHttpRequest emulation for node.js

The simplest unit testing framework possible.

Simple JS stack with auto run for node and browsers

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

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

Unpack a browser type and version from the useragent string

Smart IPFS gateway selector with latency testing and fallback logic (vanilla JS)

A browser and nodeJS compatible plugin that allows to generate GraphQL Queries and Variables

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

A mock browser with window, document, location, navigation, local and session storage to use for client side code tests in a node environment.

Browser compatibility data provided by MDN Web Docs

Simulates a global browser environment using jsdom

Node standard library for browser.

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!

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

Get the paths of edge browser easily

JavaScript UI component for displaying audio waveforms

Detect device type and render your component according to it

Analyze and debug space usage through source maps

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

OpenTelemetry instrumentation for fetch http client in web browsers

A generated SDK for ResourceManagementClient.

Check if mobile browser.

OpenTelemetry instrumentation for XMLHttpRequest http client in web browsers

Create a MD5 hash with hex encoding

Minimal JavaScript module loader

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

CSS base styles

File manager plugin for CKEditor 5

A lightweight, flexible and based testing library for 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

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

Cross Platform implementation of the GitLab API

Tiny local JSON database for Node, Electron and the browser

Mouse wheel normalization across multiple multiple browsers.

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

A Minimalistic Wrapper for IndexedDB

utilities for parsing shorthand Selenium capabilities objects

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

Browser port of the Node.js 'request' package

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

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

Test whether value is error object

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.

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

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

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

Lint browser compatibility of API used

A simple and small testing suite for javascript, both browser and node.js

Isomorphic client library for Azure KeyVault's secrets.

the stream module from node core for browsers

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

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.

Simple JS queue with auto run for node and browsers

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

Simple JS queue with auto run for node and browsers

Adapter that integrates @serenity-js/web with WebdriverIO 8, enabling Serenity/JS reporting and using the Screenplay Pattern to write web and mobile test scenarios

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

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

Browser fingerprinting library with the highest accuracy and stability

watch mode for browserify builds

The official Fullstory browser SDK

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

Javascript audio library for the modern web.

The #1 HTML sanitizer - 100% security success rate AND fastest performance. Outperforms DOMPurify, js-xss, bleach-js and all competitors in comprehensive testing.

A promise controlled browser ideal for testing

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

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

Run textlint rule on browser for testing.

Google's libphonenumber pre-compiled with the closure compiler

Mixpanel Cordova Plugin for iOS, Android and Browser Platforms

Fast, generic and type safe router (match method and path).

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

A powerful browser based unit testing user interface.

Environment utilities

Lightweight copy to clipboard for the web

Logger Utils

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

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)

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

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

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

Compress images in the browser

Nightwatch.js plugin for Cucumber.js

A pure JavaScript client for the tus resumable upload protocol

Lint CSS for browser support against caniuse database

Normalize browsers' default style

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

Insanely fast, full-stack, headless browser testing using Node.js

Microsoft Azure Storage SDK for JavaScript - Queue

Chai assertions for iterable objects

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

jsonp minimal client for the browser (1.4K) and Node.js

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

provides locking mechanism to sync across browser tabs

AWS X-Ray ID generator for OpenTelemetry

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

Extend Chai Assertion library with tests for superagent requests

Faro instrumentations, metas, transports for web.

Chromium Binary for Serverless Platforms

UI utilities

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

Populate a <canvas> element with a font texture atlas

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

Automated Functional Testing (AFT) package supporting UI testing in mobile apps with support for BrowserStack, Sauce Labs and Local Appium

small function to append a query string to a URL

browserify compatible version of the ace editor.

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

Check if a value is a `Blob`

Consistent cross browser mouse wheel movement

Creates a local connection to CrossBrowserTesting.com which allows you to test sites behind your firewall or to access web pages that are saved locally on your machine. In just a few seconds, you can establish a connection which allows you to do live test

Get the size of an element in pixels, including margins

Check if browser is Firefox

Get a list of objects describing the OS and browser platforms on Sauce Labs using "zuul" format

Check if browser is Internet Explorer

tiny http client for Node and the browser

Cascading grid layout library

JavaScript barcode generator supporting over 100 types and standards.

Text utilities for SUIT CSS

Read small to medium `*.xlsx` files in a browser or Node.js. Parse to JSON with a strict schema.

Mouse wheel normalization across multiple multiple browsers.

Advanced HTTP requests in node.js and browsers

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

A companion library to openai for Azure OpenAI.

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

ExpressJS/Connect/TrinteJS user-agent middleware exposing

Faro web tracing implementation.

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

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

insert a string of css into the <head>

Generic browser priority queue.

Change assertions for the Chai assertion library

Backbone assertions for the Chai assertion library

A generated SDK for ContainerInstanceManagementClient.

Emscripten distribution of libheif for Node.JS and the browser

A regular expression that matches a CHANGELOG filename

Auth0 headless browser sdk

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

Give eachr an item to iterate (array, object or map) and an iterator, then in return eachr gives iterator the value and key of each item, and will stop if the iterator returned false.

Cross browser String#split implementation

Pipe javascript into phantomjs, print the output, writing test coverage to disk along the way

Capture browser logs for logging in NodeJS

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

Integration testing for the modern web

Fast client-side asset builder

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

Javascript string formatter for human readability

Copy to clipboard.

Base draggable class

React hooks done right, for browser and SSR.

return all coordinates from a geojson object

Returns `true` if the Selection is "backward", `false` otherwise

A localtunnel tunnel implementation for Zuul

compute the bounding box of geojson features

Babel plugin for stubbing (ES6, ES2015) module exports

Utility library to determine and normalize Element.scrollLeft behavior

get webrtc browser methods unprefixed

launch a web worker that can require() in the browser with browserify

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.

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

A generated SDK for ComputeManagementClient.

Migrate older jQuery code to jQuery 3.0+

A library that drives the visual grid with dom snapshot rendering.

High level API to add outline to a pdf without any dependency on other programming languages. Works in both browser and node.

Provides an enum of all possible VNode Flags used when calling Inferno.createVNode

a geographic extent object

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

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

Returns the `window` object from a DOM object

A generated SDK for NetworkManagementClient.

Fingerprint Pro JavaScript agent

Node SDK for Scrapeless AI

A dynamic, browser-based visualization library.

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

Display utilities for SUIT CSS

OpenFeature SDK for Web

Implementation of the Server-sent events protocol for Node.js and browsers.

Simple utility for watching and retrieving browser viewport width, height, vmin and vmax

A generated SDK for SubscriptionClient.

Run client-side mocha tests in phantomjs or slimerjs

A generated SDK for StorageManagementClient.

React hooks for TraceTail enterprise browser fingerprinting with over 99.5% accuracy. TypeScript support and React 18 compatibility.