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

Node.js Buffer API, for React Native

Client-Side Cookie Manipulation API

A browser-safe API wrapper

Vendor agnostic access to the fullscreen spec api

Node.js Buffer API, for the browser

Inference API for Azure-supported AI models

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

Async loader for google maps api (browser, typescript)

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

A polyfill for the proposed inert API

WebPageTest API wrapper for NodeJS

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

A polyfill of IntersectionObserver API

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

A polyfill for the Resize Observer 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

Tiny and elegant HTTP client based on the Fetch API

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

A simple, lightweight API for handling cookies in the browser

The API package of Yoroi SDK

localStorage-compatible API, but only stored in memory

Typescript Networking Library for the Yext Search API

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.

Node SDK for Hyperbrowser 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)

Polyfill for Crypto instance methods of Web Crypto API

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

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

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

A polyfill for the proposed blocking elements stack API

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

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

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

Universal WHATWG Fetch API for Node, Browsers and React Native

A simple async local mock API without backend.

Official JavaScript library for the WordPress.com REST API

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

Isomorphic WHATWG Fetch API, for ALL node based environments.

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

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

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

hoodie.connectionStatus API for the browser

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

A polyfill for the Resize Observer API

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.

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

Isomorphic Performance API for Node, Browser & React Native

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

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

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

JavaScript Client API for Kurento Media Server

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

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

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

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

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

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

Wrapper for asynchronously load Google Maps API with Promise.

synology api for nodejs

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.

dom events with a node-style EventEmitter api

Async loader for the delighted api (browser, typescript)

Cross-environment (nodejs/web) fetch API

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

Light wrapper around browser *Storage API, IE8+

Emulators (dos) with standartized API

The implementation of the Screen API for jsdom-browser.

JavaScript Client API for Kurento Media Server

quickly create a simple and extendable api-client

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

React component for the Javascript Notification API

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

Universal WHATWG Fetch API for Node, Browsers and React Native

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

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

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.

Device detection on-premise 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.

Device detection cloud services for the 51Degrees Pipeline API

log API for the browser

A TypeScript API client using fetch with axios-like interface

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

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

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

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

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

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

Account client API for the browser

Build CommonJS modules for the browser via a chainable API

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

Microsoft Azure SDK for JavaScript - Aborter

Lightweight browser detector

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

Convert a typed array to a Buffer without a copy

Lint browser compatibility of API used for Agoda

Copy stuff into clipboard using JS with fallbacks

Node standard library for browser.

Parse and stringify URL query strings

the stream module from node core for browsers

Browser API service for Koishi

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

Async loader for the Appcues api

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

API client for coveralls.io

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

A polyfill for the proposed inert API

Universal wrapper for Fetch API

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

Universal HTTP client for Cloudflare API

Create and store keys in the browser with the webcrypto API

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.

Wallet address validator for Bitcoin and other Altcoins.

Isomorphic implementation of WebSocket

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

An universal client for the Lexoffice API written in Typescript

Extensible test suite API.

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

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

Use Ky in both Node.js and browsers

the path module from node core for browsers

A lightweight JavaScript library for loading the Google Maps JavaScript API

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

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

Microsoft Azure Storage SDK for JavaScript - Blob

Get a KeyboardEvent.key-style string from an event

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

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

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

📥 Generate Request to API from Browser

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 client for working with the BrowserStack APIs.

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

Determine if an object is a Buffer

resolve which handles browser field support in package.json

Web api for using VITS based models in the 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

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

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

API utilities for Cortex applications

Dynamic script loading for browser

Plugin for loglevel message prefixing

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

[](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

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

Create a MD5 hash with hex encoding

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

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

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)

Check if mobile browser.

Detect device type and render your component according to it

Beeping sound in browser using Web Audio API

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

JavaScript SDK for Oxylabs AI Studio API services

A generated SDK for WebSiteManagementClient.

Tiny and elegant HTTP client based on the Fetch API

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

Cross-browser `CustomEvent` constructor

An universal client for the Lexoffice API written in Typescript

A modern, highly-configurable API client designed for DX. Works in both browser and Node.js environments.

node's constants module for the browser

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

A generated SDK for ResourceManagementClient.

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

sort module-deps output for deterministic browserify bundles

Navigator api for node.js

Array#isArray for older browsers

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

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

Create keys with the webcrypto API

A polyfill for the BarcodeDetector API using the ZXing library

API server to launch Playwright browsers via HTTP endpoints

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.

Isomorphic client library for Azure KeyVault's keys.

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

Promisify an event by waiting for it to be emitted

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

Javascript audio library for the modern web.

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

Type safe web extension api (partial)

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

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

Test whether value is error object

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.

A test suite for browserless API

Isomorphic client library for Azure KeyVault's secrets.

ES2015 `Object.assign()` ponyfill

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

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

OpenTelemetry instrumentation for fetch http client in web browsers

Microsoft Azure Storage SDK for JavaScript - Queue

Node.js SDK for Browserness API

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

Lightweight browser notification utility with permission handling, clean API, fallbacks, and deduplication out of the box

A JavaScript API for handling cookies

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

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

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

Google's libphonenumber pre-compiled with the closure compiler

An isomorphic Buffer API

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

Push and Notifications API wrapper.

compute the bounding box of geojson features

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

Methods for working with Telegram API

return all coordinates from a geojson object

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

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

Small JWT library using the Web Crypto API