JSPM

Public API for OpenTelemetry

Public logs API for OpenTelemetry

memlab API

Node.js Buffer API, for the browser

Universal WHATWG Fetch API for Node, Browsers and React Native

A simple, lightweight JavaScript API for handling cookies

Tiny and elegant HTTP client based on the Fetch API

A polyfill for the Resize Observer API

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

OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

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

Lint browser compatibility of API used

Cross Platform implementation of the GitLab API

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

Client-Side Cookie Manipulation API

Node.js Buffer API, for the browser

Node.js Buffer API, for React Native

Public events API for OpenTelemetry

Vendor agnostic access to the fullscreen spec api

A browser-safe API wrapper

Node.js Buffer API, for the browser

Get up and running with the google maps API quickly

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

Inference API for Azure-supported AI models

Node.js Buffer API, for the browser

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

Async loader for google maps api (browser, typescript)

WebPageTest API wrapper for NodeJS

A polyfill for the proposed inert API

A comprehensive JavaScript/TypeScript library designed for both Node.JS and browsers, facilitating seamless interaction with the Atlassian Jira API.

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

An easy-to-use JavaScript API for the Internet Computer.

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

A polyfill of IntersectionObserver API

Easy to use Node.js based end-to-end testing solution for web applications using the W3C WebDriver API.

JavaScript API to work against complex domain names, subdomains and URIs.

A polyfill for the Resize Observer API

Tiny and elegant HTTP client based on the Fetch API

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

A simple, lightweight API for handling cookies in the browser

Typescript Networking Library for the Yext Search API

localStorage-compatible API, but only stored in memory

Authentication library for the browser environment using Web Crypto API

A simple polyfill implementation of W3C's JavaScript Fullscreen API spec. Don't worry about the vendor specific Fullscreen API.

Polyfill for Crypto instance methods of Web Crypto API

Node SDK for Hyperbrowser API

Interact with the GitHub API, fetching commits, repositories, members, and backers (authors, maintainers, contributors, funders, sponsors, donors)

A polyfill for the proposed blocking elements stack API

A simple api for generating sha1 hashes in node and the browser.

SDK for MetaApi, a professional cloud forex API which includes MetaTrader REST API and MetaTrader websocket API. Supports both MetaTrader 5 (MT5) and MetaTrader 4 (MT4). CopyFactory copy trading API included. (https://metaapi.cloud)

A simple shim for the server-side DOM API

Get the Google Client API object asynchronously to use Google API's

The API package of Yoroi SDK

(recursively) iterate directory entries in the browser (html5 File System API)

Lint browser compatibility of API used

Minimal Magento 2 API library. Both node and browser compatible

A more usable typed storage API for Web Extensions

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

A tiny Fetch API wrapper that allows you to make http requests without need to handle to send the CSRF Token on every request

Universal WHATWG Fetch API for Node, Browsers and React Native

A simple async local mock API without backend.

Isomorphic WHATWG Fetch API, for ALL node based environments.

Proxied cookie-authenticated REST API requests to WordPress.com.

Curried property accessor function that resolves deeply-nested object properties via dot/bracket-notation string path while mitigating TypeErrors via friendly and composable API.

Official JavaScript library for the WordPress.com REST API

REST API requests to WordPress.com via XMLHttpRequest (and CORS)

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

Play SoundCloud tracks and playslists in modern browsers with HTML5 Audio API

Face API REST Client

hoodie.connectionStatus API for the browser

Telegram API JS (MTProto) client library for Node.js and browser

Request API write by Typescript for flexibility, readability, and a low learning curve.

HTTP client which wraps a fetch implementation and simplify the creation of REST API clients. Works both in browser and in node.

EN: A simple, high-performance, and comprehensive file system API running in the browser, built on [OPFS](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Origin_private_file_system).

A polyfill for the Resize Observer API

Crossbrowser & lightweight way to check if user is looking at the page or interacting with it. (wrapper around HTML5 visibility api)

Isomorphic Performance API for Node, Browser & React Native

ClearBlade JavaScript API =========================

Generic, modular, extensible API bridge and infrastructure for hybrid JS & WebAssembly projects

Official Droplr API Client for Javascript

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

Typescript Networking Library for the Yext Chat API

A JavaScript Sound API supporting MP3, MPEG4 and HTML5 audio + RTMP, providing reliable cross-browser/platform audio control in as little as 12 KB.

A tiny browser module that normalizes and simplifies the API for WebRTC peer connections.

A library of functions for working more easily with the Notion API

Browser DOM bridge API for hybrid TypeScript & WASM (Zig) applications

cross-browser getUserMedia shim with node.js style error-first API.

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

synology api for nodejs

Wrapper for asynchronously load Google Maps API with Promise.

JavaScript Client API for Kurento Media Server

quickly create a simple and extendable api-client

Emulators (dos) with standartized API

Crossbrowser & lightweight way to check if user is looking at the page or interacting with it. (wrapper around HTML5 visibility api)

Super-lightweight Promised wrapper around `chrome.*` API to be used in modules. Prefer `webextension-polyfill` if you’re using it directly in an extension.

Cross-environment (nodejs/web) fetch API

Light wrapper around browser *Storage API, IE8+

Async loader for the delighted api (browser, typescript)

WebGL bridge API for hybrid TypeScript & WASM (Zig) applications

HTML Canvas2D bridge API for hybrid TypeScript & WASM (Zig) applications

dom events with a node-style EventEmitter api

Communicate with the Open Source TCGdex API in Javascript/Typescript using the SDK

Universal WHATWG Fetch API for Node, Browsers and React Native

The implementation of the Screen API for jsdom-browser.

React component for the Javascript Notification API

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

A thin, Promise-returning helper for loading the Google Maps JavaScript API.

Device detection on-premise services for the 51Degrees Pipeline API

JavaScript Client API for Kurento Media Server

Javascript SDK for SDK for CopyFactory trade copying API. Can copy trades both between MetaTrader 5 (MT5) and MetaTrader 4 (MT4). (https://metaapi.cloud)

log API for the browser

gmaps.js core that contains the base for create simple maps using Google Maps API

Device detection cloud services for the 51Degrees Pipeline API

Convert SVG/PNG and back, both in browser and node.js. JavaScript API and Command Line

Client-side JavaScript toolkit for Pluggy's API.

Cache values in your Web Extension and clear them on expiration. Also includes a memoize-like API to cache any function results automatically.

A TypeScript API client using fetch with axios-like interface

Javascript SDK for MetaStats forex trading statistics API. Can calculate metrics for MetaTrader accounts added to MetaApi. Supports both MetaTrader 5 (MT5) and MetaTrader 4 (MT4). (https://metaapi.cloud)

The string_decoder module from Node core

Account client API for the browser

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

Standalone Playwright browser server for NavFlow - enables browser automation with API key authentication, workspace device management, session sync, LLM discovery tools, and requires Node.js v22+

Shared functionality for implementing device detection engine for the 51Degrees Pipeline API

An API wrapper for PokeAPI

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

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

Lightweight browser detector

Microsoft Azure SDK for JavaScript - Aborter

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

Async loader for the Appcues api

Convert a typed array to a Buffer without a copy

Universal wrapper for Fetch API

Enhanced fetch API with cache strategy, retry pattern, timeout, helper methods and enhanced types.

Build CommonJS modules for the browser via a chainable API

the stream module from node core for browsers

Create and store keys in the browser with the webcrypto API

An universal client for the Lexoffice API written in Typescript

API client for coveralls.io

A polyfill for the proposed inert API

Node standard library for browser.

Copy stuff into clipboard using JS with fallbacks

JavaScript/TypeScript client for the Etsy Open API v3 with OAuth 2.0 authentication

OpenCrypto is a lightweight JavaScript library built on top of WebCryptography API

Node.js style wrapper for the HTML5/Cordova FileSytem API.

JavaScript SDK to connect to the MyParcel API via Node.js or browser

Parse and stringify URL query strings

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

Lint browser compatibility of API used for Agoda

Browser API service for Koishi

Next-generation TypeScript HTTP client with built-in retry, smart caching, and seamless authentication. Effortlessly handle API requests with advanced features for modern web development.

Wallet address validator for Bitcoin and other Altcoins.

Extensible test suite API.

A lightweight JavaScript library for loading the Google Maps JavaScript API

Use Ky in both Node.js and browsers

Isomorphic implementation of WebSocket

cross-browser getUserMedia shim with node.js style error-first API.

Piral Cloud: Browser-usable API Client for the Piral Feed Service.

the path module from node core for browsers

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

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

Ledger Hardware Wallet Web implementation of the communication layer, using U2F api

translations api for node.js, browsers and the command line

Microsoft Azure Storage SDK for JavaScript - Blob

📥 Generate Request to API from Browser

NgxSerial eases the use of the Serial Web API in Angular.

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

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

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.

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

A client for working with the BrowserStack APIs.

Get a KeyboardEvent.key-style string from an event

resolve which handles browser field support in package.json

Determine if an object is a Buffer

API utilities for Cortex applications

Plugin for loglevel message prefixing

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

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

Dynamic script loading for browser

[](https://developer.twitter.com/en/docs/twitter-api/early-access) [![Twitter API v1.1 badge](https://img.shields.io/endpoint?url=https%3A%2F%2Ftwba

Create a MD5 hash with hex encoding

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

JavaScript SDK for Oxylabs AI Studio API services

Reverse geocoding browser-based typescript library, using free Bigdatacloud API

A lightweight, modular DOM manipulation library with chainable API, zero dependencies, and modern ES modules.

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

Tools for using the Open API Specification (OAS)

Detect device type and render your component according to it

Check if mobile browser.

A lightweight TypeScript RESTful API client for browsers with error handling.

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

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

Universal HTTP client for Cloudflare API

A generated SDK for WebSiteManagementClient.

Cross-browser `CustomEvent` constructor

Navigator api for node.js

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

Node.js Buffer API, for Sketch

An universal client for the Lexoffice API written in Typescript

sort module-deps output for deterministic browserify bundles

Module-friendly fork of js-cookie. A simple, lightweight JavaScript API for handling cookies

node's constants module for the browser

Tiny, isomorphic convenience wrapper around the [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) aiming to reduce boilerplate, especially when sending and receiving JSON.

Module-friendly fork of js-cookie. A simple, lightweight JavaScript API for handling cookies

A generated SDK for ResourceManagementClient.

A polyfill for the BarcodeDetector API using the ZXing library

Javascript audio library for the modern web.

Array#isArray for older browsers

Library for connecting to Internet Avatar API.

A browser module for attempting to get access to a MediaStream of a user's screen. With a nice node-like API.

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

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

Isomorphic client library for Azure KeyVault's keys.

An ES5 mostly-spec-compliant `Object.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

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

Beeping sound in browser using Web Audio API

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

Promisify an event by waiting for it to be emitted

Isomorphic client library for Azure KeyVault's secrets.

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

API server to launch Playwright browsers via HTTP endpoints

Type safe web extension api (partial)

ES2015 `Object.assign()` ponyfill

Tiny and elegant HTTP client based on the Fetch API

Test whether value is error object

A test suite for browserless API

| index | [npm-run-all] | [run-s] | [run-p] | [Node API] | |-------|---------------|---------|---------|------------|

Modern file saving library for browsers with File System Access API support and fallback

Cross-browser, lightweight way to check if user is looking at the page or interacting with it. (wrapper around HTML5 visibility api)

OpenTelemetry instrumentation for fetch http client in web browsers

Create a pretty Excel table from JSON data with a very simple API

Microsoft Azure Storage SDK for JavaScript - Queue

Create keys with the webcrypto API

An isomorphic Buffer API

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

The Anedya SDK is a JavaScript/TypeScript library that allows you to access the Anedya Platform API from your web application. It provides a simple and intuitive interface for interacting with the Anedya API, making it easy to integrate Anedya into your e

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

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

compute the bounding box of geojson features

Google's libphonenumber pre-compiled with the closure compiler

Type-safe, ergonomic API client builder for TypeScript & React based on ky.

Auth0 headless browser sdk

Push and Notifications API wrapper.

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

Fetch based HTTP client with similar API to axios for browser and Node.js

UI utilities

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

A lightweight and universal Instagram API client

Universal text-to-speech library using Microsoft Edge's online TTS service. Works in Node.js and browsers WITHOUT needing Microsoft Edge, Windows, or an API key

Browser-specific Lightweight JS SDK for Crudify GraphQL API