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

A polyfill for the Resize Observer API

Tiny and elegant HTTP client based on the Fetch API

OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

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

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

Lint browser compatibility of API used

Cross Platform implementation of the GitLab API

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

Node.js Buffer API, for the browser

Public events API for OpenTelemetry

A browser-safe API wrapper

Vendor agnostic access to the fullscreen spec api

Node.js Buffer API, for React Native

Client-Side Cookie Manipulation API

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

Node.js Buffer API, for the browser

Node.js Buffer API, for the browser

Inference API for Azure-supported AI models

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

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.

A polyfill of IntersectionObserver API

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

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

A polyfill for the Resize Observer API

Tiny and elegant HTTP client based on the Fetch API

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

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

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

A simple, lightweight API for handling cookies in the browser

localStorage-compatible API, but only stored in memory

Authentication library for the browser environment using Web Crypto API

Typescript Networking Library for the Yext Search API

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

Node SDK for Hyperbrowser API

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

Polyfill for Crypto instance methods of Web Crypto API

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)

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

The API package of Yoroi SDK

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

A polyfill for the proposed blocking elements stack API

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

A simple shim for the server-side DOM API

Minimal Magento 2 API library. Both node and browser compatible

Lint browser compatibility of API used

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

hoodie.connectionStatus API for the browser

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

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

A simple async local mock API without backend.

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

Official JavaScript library for the WordPress.com REST API

Isomorphic WHATWG Fetch API, for ALL node based environments.

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

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

Face API REST Client

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

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

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).

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

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

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

Official Droplr API Client for Javascript

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

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

Account client API for the browser

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

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

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

Wrapper for asynchronously load Google Maps API with Promise.

JavaScript Client API for Kurento Media Server

Light wrapper around browser *Storage API, IE8+

Async loader for the delighted api (browser, typescript)

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

Cross-environment (nodejs/web) fetch API

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

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

Emulators (dos) with standartized API

dom events with a node-style EventEmitter api

Universal WHATWG Fetch API for Node, Browsers and React Native

The implementation of the Screen API for jsdom-browser.

quickly create a simple and extendable api-client

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

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

React component for the Javascript Notification API

JavaScript Client API for Kurento Media Server

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

log API for the browser

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

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

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

Device detection on-premise services for the 51Degrees Pipeline 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

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

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.

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)

A TypeScript API client using fetch with axios-like interface

The string_decoder module from Node core

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+

An API wrapper for PokeAPI

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

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

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

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

Lightweight browser detector

Microsoft Azure SDK for JavaScript - Aborter

Universal wrapper for Fetch API

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

Build CommonJS modules for the browser via a chainable API

API client for coveralls.io

Convert a typed array to a Buffer without a copy

Node standard library for browser.

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

Parse and stringify URL query strings

Copy stuff into clipboard using JS with fallbacks

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

the stream module from node core for browsers

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.

Browser API service for Koishi

Create and store keys in the browser with the webcrypto API

Lint browser compatibility of API used for Agoda

A polyfill for the proposed inert API

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

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

Async loader for the Appcues api

An universal client for the Lexoffice API written in Typescript

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

Extensible test suite API.

Use Ky in both Node.js and browsers

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

A lightweight JavaScript library for loading the Google Maps JavaScript API

Wallet address validator for Bitcoin and other Altcoins.

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

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

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

Isomorphic implementation of WebSocket

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

📥 Generate Request to API from Browser

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

the path module from node core for browsers

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

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.

Microsoft Azure Storage SDK for JavaScript - Blob

resolve which handles browser field support in package.json

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

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

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

Get a KeyboardEvent.key-style string from an event

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

API utilities for Cortex applications

A client for working with the BrowserStack APIs.

Determine if an object is a Buffer

Dynamic script loading for browser

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

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

Plugin for loglevel message prefixing

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

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

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

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

JavaScript SDK for Oxylabs AI Studio API services

Detect device type and render your component according to it

Tools for using the Open API Specification (OAS)

[](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

Check if mobile browser.

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

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

A generated SDK for WebSiteManagementClient.

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

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

Universal HTTP client for Cloudflare API

Navigator api for node.js

An universal client for the Lexoffice API written in Typescript

sort module-deps output for deterministic browserify bundles

Node.js Buffer API, for Sketch

Cross-browser `CustomEvent` constructor

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

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

A polyfill for the BarcodeDetector API using the ZXing library

node's constants module for the browser

A generated SDK for ResourceManagementClient.

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

Library for connecting to Internet Avatar API.

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

Javascript audio library for the modern web.

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

Isomorphic client library for Azure KeyVault's secrets.

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

Array#isArray for older browsers

Promisify an event by waiting for it to be emitted

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

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

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

Isomorphic client library for Azure KeyVault's keys.

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

Beeping sound in browser using Web Audio API

Type safe web extension api (partial)

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.

API server to launch Playwright browsers via HTTP endpoints

Tiny and elegant HTTP client based on the Fetch API

Implementation of the hyperswarm API for use in web browsers

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

OpenTelemetry instrumentation for fetch http client in web browsers

Test whether value is error object

Microsoft Azure Storage SDK for JavaScript - Queue

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

ES2015 `Object.assign()` ponyfill

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

compute the bounding box of geojson features

Create keys with the webcrypto API

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

Browser-specific Lightweight JS SDK for Crudify GraphQL API

Auth0 headless browser sdk

Push and Notifications API wrapper.

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

UI utilities

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

Google's libphonenumber pre-compiled with the closure compiler

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

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

An isomorphic Buffer API

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

Node [streams2](http://nodejs.org/api/stream.html) over [Primus](https://github.com/primus/primus): added back-pressure!