JSPM

Node.js Buffer API, for the browser

Determine if an object is a Buffer

Convert a typed array to a Buffer without a copy

Node.js Buffer API, for the browser

Node.js Buffer API, for React Native

Node.js Buffer API, for the browser

Node.js Buffer API, for the browser

Lightweight buffer library for the browser (Now with Base64URL support!)

Node.js Buffer API, for React-Native with native Base64

Node.js's buffer module for Frida

A cross-platform, partial implementation shim of Node Buffer.

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

Port of Node Buffer for web

Converts a Canvas graphic into a Buffer, as fast as possible and without a copy.

bigint to buffer conversion with native support - fixed version

Node.js Buffer API, for Sketch

Buffer Serializer =================

Buffer Serializer =================

An isomorphic Buffer API

An isomorphic Buffer API

Node.js Buffer API, for the browser

A cross platform alternative of Node buffer base on UInt8Array.

Easily start and stop an X Virtual Frame Buffer from your node app

A tiny isomorphic implementation of a large subset of Node's Buffer.

A basic audio buffer concatenator that will work with Rollup.

Detect whether or not an object is an ArrayBuffer.

Create a MD5 hash with hex encoding

read all or part of the content in a Blob or File as a Buffer or Stream

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

Fix Buffer in the browser.

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

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

XMLHttpRequest emulation for node.js

Node standard library for browser.

Node.js Buffer API, for the browser

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

Professional video buffering analytics & tracking library for monitoring video streaming performance, buffering progress, and user experience in real-time. Perfect for video platforms, e-learning apps, and media analytics.

Node.js Buffer API, for the browser

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

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IOTA transaction (de)serialization & guards.

Smart buffer

Node.js Buffer module, fully optimized for Next.js. C++ or Pure-JS automatic fallback, depending on the runtime environments. Tree-shaking ready.

Node.js crypto module subset for browser

A simple implementation for browser to switch string between buffer

Random bytes stream for node and browser

The string_decoder module from Node core

Array#isArray for older browsers

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

TypeScript library for parsing binary Property Lists, in browser and node.js.

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

ES2015 `Object.assign()` ponyfill

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

browser compatible preset for otplib

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

Request cowl for making requests from NodeJS/Browser/React-Native

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

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

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

Public logs API for OpenTelemetry

Base class for node which OpenTelemetry instrumentation modules extend

Public API for OpenTelemetry

Node.js crypto module subset for browser

Small universal base64 functions for node.js and browsers

Lightweight browser detector

MurmurHash in WASM for Node.js and the browser

Universal WHATWG Fetch API for Node, Browsers and React Native

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

the path module from node core for browsers

Microsoft Azure SDK for JavaScript - Aborter

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

High performance (de)compression in an 8kB package

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

the stream module from node core for browsers

JavaScript library for DOM operations

Get the default browser

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

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

Parse and stringify URL query strings

A simple, lightweight JavaScript API for handling cookies

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

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

HTML5 `FormData` for Browsers and Node.

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

https module compatability for browserify

Random number generator for browsers and node.js

Decode JWT tokens, mostly useful for browser applications.

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

JSON without touching any globals

Parse milliseconds into an object

Isomorphic implementation of WebSocket

timers module for browserify

the tty module from node core for browsers

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

vm module for the browser

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

node's constants module for the browser

A polyfill for the Resize Observer API

Brotli compression/decompression that encodes to base-unicode and back. Node.js and Browser support.

Lazy assertions without performance penalty

Toggle current selected content in browser

Microsoft Azure SDK for JavaScript - Logger

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

Promisify an event by waiting for it to be emitted

Copy stuff into clipboard using JS with fallbacks

resolve which handles browser field support in package.json

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

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

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

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

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

[](#)   ![GitHub issues](https://img.sh

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

<div> <div align="center"> <img src="https://raw.githubusercontent.com/jjxxs/websocket-ts/gh-pages/websocket-ts-logo.svg" alt="websocket-ts" width="300" height="65" /> </div> <p align="center"> <img src="https://github.com/jjxxs/websocket-ts

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

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

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.

LRU and FIFO caches for Client or Server

🔥 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

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

TypeScript library for parsing and serializing XML, OpenStep/NextStep and binary Property Lists, in browser and node.js.

Topological sort of directed acyclic graphs (like dependecy lists)

Serializes any DOM node into a String

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

Plugin for loglevel message prefixing

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

Dynamic script loading for browser

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

A tool to get browser's scrollbars width.

browser-side require() the node way

HKDF with no dependencies using runtime's native crypto

TypedArray. Work with bytes. Can be used as a Buffer, TypedArray, BitView, DataView. Client side and server side support.

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

DOMParser.parseFromString for XML with IE8 fallback

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

Tests if ES6 @@toStringTag is supported.

Tests if ES6 Symbol is supported.

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

Isomorphic client library for Azure KeyVault's keys.

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

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

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

sort module-deps output for deterministic browserify bundles

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

Array#filter for older browsers.

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

Simple JS stack with auto run for node and browsers

A generated SDK for WebSiteManagementClient.

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

Unpack a browser type and version from the useragent string

Browser compatibility data provided by MDN Web Docs

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

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

Analyze and debug space usage through source maps

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

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

Detect device type and render your component according to it

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!

Get the paths of edge browser easily

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

tap-producing test harness for node and browsers

A generated SDK for ResourceManagementClient.

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

A client for working with the BrowserStack APIs.

OpenTelemetry instrumentation for fetch http client in web browsers

Minimal JavaScript module loader

Cross Platform implementation of the GitLab API

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

Mouse wheel normalization across multiple multiple browsers.

Check if mobile browser.

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

OpenTelemetry instrumentation for XMLHttpRequest http client in web browsers

Tiny local JSON database for Node, Electron and the browser

Read file blobs easily

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

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

File manager plugin for CKEditor 5

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

Browser port of the Node.js 'request' package

A Minimalistic Wrapper for IndexedDB

convert an AudioBuffer to .wav format

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

Simple JS queue with auto run for node and browsers

Test whether value is error object

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

Lint browser compatibility of API used

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

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.

Isomorphic client library for Azure KeyVault's secrets.

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

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

Javascript audio library for the modern web.

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

Simple JS queue with auto run for node and browsers

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

Browser fingerprinting library with the highest accuracy and stability

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

The minimum code point of 4 byte characters in UTF-8

The official Fullstory browser SDK

watch mode for browserify builds

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

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

Logger Utils

Google's libphonenumber pre-compiled with the closure compiler

strings comparison matchers for chai

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

Binary protocol buffer for javascript

Lightweight copy to clipboard for the web

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

Environment utilities

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

read all or part of the content in a Blob or File as a Buffer or Stream

WebGL & GLSL abstraction layer

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)

Compress images in the browser

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

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

Normalize browsers' default style

Lint CSS for browser support against caniuse database

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

A pure JavaScript client for the tus resumable upload protocol

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

provides locking mechanism to sync across browser tabs

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

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Auto mock all localstorage and sessionstorage APIs for your Jest tests

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