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

Node.js Buffer API, for the browser

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

A browser-safe API wrapper

Client-Side Cookie Manipulation API

Node.js Buffer API, for React Native

Vendor agnostic access to the fullscreen spec api

Public events API for OpenTelemetry

Node.js Buffer API, for the browser

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

Get up and running with the google maps API quickly

Node.js Buffer API, for the browser

Inference API for Azure-supported AI models

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

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

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

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

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

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

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

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

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

localStorage-compatible API, but only stored in memory

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)

Polyfill for Crypto instance methods of Web Crypto API

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

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

The API package of Yoroi SDK

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 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

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

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

Universal WHATWG Fetch API for Node, Browsers and React Native

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

hoodie.connectionStatus API for the browser

Isomorphic WHATWG Fetch API, for ALL node based environments.

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.

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

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

Face API REST Client

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

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

Isomorphic Performance API for Node, Browser & React Native

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

A simple async local mock API without backend.

log API for the browser

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

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

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

Official Droplr API Client for Javascript

Typescript Networking Library for the Yext Chat API

Account client API for the browser

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

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

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

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

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

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

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

Wrapper for asynchronously load Google Maps API with Promise.

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

JavaScript Client API for Kurento Media Server

Async loader for the delighted api (browser, typescript)

Cross-environment (nodejs/web) fetch API

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

dom events with a node-style EventEmitter 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.

The implementation of the Screen API for jsdom-browser.

quickly create a simple and extendable api-client

Emulators (dos) with standartized API

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

Universal WHATWG Fetch API for Node, Browsers and React Native

React component for the Javascript Notification API

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

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

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

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

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

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

Device detection cloud services for the 51Degrees Pipeline API

A thin, Promise-returning helper for loading the Google Maps JavaScript 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 Client API for Kurento Media Server

Client-side JavaScript toolkit for Pluggy's API.

A TypeScript API client using fetch with axios-like interface

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+

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

The string_decoder module from Node core

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

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

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

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

An API wrapper for PokeAPI

Microsoft Azure SDK for JavaScript - Aborter

Lightweight browser detector

Convert a typed array to a Buffer without a copy

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

Build CommonJS modules for the browser via a chainable API

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

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

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

Create and store keys in the browser with the webcrypto API

A polyfill for the proposed inert API

Universal wrapper for Fetch API

Browser API service for Koishi

Light wrapper around browser *Storage API, IE8+

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

Lint browser compatibility of API used for Agoda

Async loader for the Appcues api

An universal client for the Lexoffice API written in Typescript

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.

A lightweight JavaScript library for loading the Google Maps JavaScript API

API client for coveralls.io

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

Wallet address validator for Bitcoin and other Altcoins.

Isomorphic implementation of WebSocket

Use Ky in both Node.js and browsers

the path module from node core for browsers

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

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

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

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

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

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

Microsoft Azure Storage SDK for JavaScript - Blob

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

Get a KeyboardEvent.key-style string from an event

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

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

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

A client for working with the BrowserStack APIs.

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

Extensible test suite API.

resolve which handles browser field support in package.json

Determine if an object is a Buffer

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.

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

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

synology api for nodejs

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

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

Plugin for loglevel message prefixing

Create a MD5 hash with hex encoding

Dynamic script loading for browser

API utilities for Cortex applications

[](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

JavaScript SDK for Oxylabs AI Studio API services

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

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

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

Detect device type and render your component according to it

Tools for using the Open API Specification (OAS)

Check if mobile browser.

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

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

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

Cross-browser `CustomEvent` constructor

node's constants module for the browser

Node.js Buffer API, for Sketch

Navigator api for node.js

Universal HTTP client for Cloudflare API

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

A generated SDK for WebSiteManagementClient.

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.

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

Array#isArray for older browsers

sort module-deps output for deterministic browserify bundles

Drop-in replacement for Common Ground plugin client library with iframe sandboxing and postMessage API

An universal client for the Lexoffice API written in Typescript

Library for connecting to Internet Avatar API.

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

Isomorphic client library for Azure KeyVault's keys.

Promisify an event by waiting for it to be emitted

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

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

Javascript audio library for the modern web.

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

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

Beeping sound in browser using Web Audio API

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.

Test whether value is error object

Implementation of the hyperswarm API for use in web browsers

Create keys with the webcrypto API

ES2015 `Object.assign()` ponyfill

A test suite for browserless API

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

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

Tiny and elegant HTTP client based on the Fetch API

OpenTelemetry instrumentation for fetch http client in web browsers

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)

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

Microsoft Azure Storage SDK for JavaScript - Queue

Browser-specific Lightweight JS SDK for Crudify GraphQL API

Browser API service for Koishi

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

Push and Notifications API wrapper.

XyPriss is a lightweight, TypeScript-first, open-source Node.js web framework crafted for developers seeking a familiar Express-like API without Express dependencies. It features built-in security middleware, a robust routing system, and performance optim

Google's libphonenumber pre-compiled with the closure compiler

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

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

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

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

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

compute the bounding box of geojson features

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

An isomorphic Buffer API

return all coordinates from a geojson object

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

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

A lightweight and universal Instagram API client

A JavaScript API for handling cookies