JSPM

Build Chrome Extensions with this Vite plugin.

Safely and securely store data and share them across your extension and websites

An in-memory implementation of webextension-polyfill for testing. Supports all test frameworks (Vitest, Jest, etc)

Utilities for working with match patterns.

Isolate content script UI's styles from the parent page. Supports all browsers (Chrome, Firefox, Safari)

Type-safe, zero-config messaging library for modern browser extensions

Light weight, type-safe wrapper around the web extension messaging APIs. Supports all browsers (Chrome, Firefox, Safari)


A type-safe, localStorage-esk wrapper around the web extension storage APIs. Supports all browsers (Chrome, Firefox, Safari, etc)

Create cross-browser extensions with no build configuration.

A type-safe wrapper around the web extension messaging APIs that lets you call a function from anywhere, but execute it in the background. Supports all browsers (Chrome, Firefox, Safari, etc)

Node and Browser env supported WebAssembly version of fastText: Library for efficient text classification and representation learning.

The create step of Extension.js

The develop step of Extension.js

Schedule and run jobs in your background script

Build Chrome Extensions with this Rollup plugin.

Professional development toolkit with Chrome extension for source detection, element analysis, and beautiful liquid glass UI

Manifest generation and build tooling for Chroma Chrome extensions

Centralized, persistent store for Chrome extensions using zustand, accessible from service workers and React, with chrome.storage.local persistence.

Moso Extension SDK for white-labeled browser extensions

Core library for building Chrome extensions with Chroma framework

React bindings for the Chroma Chrome extension framework

Redux interface to chrome.storage (browser.storage). A unified way to use Redux in all modern browser extensions. The only way to get Redux working in Manifest V3 Chrome extensions

Unofficial utility to develop browser extensions for Twitter / X

Cross-platform permission management service for web3 applications

Transports for the in browser transport protocols

A couple of hacks to keep the BGSW alive in a library

A type-safe RPC for all webextension, client side code does not contain the actual called code, supports async generator functions

A library for communication between browser extension inject and content scripts

Chrome Extension API tools for Model Context Protocol (MCP) - provides MCP-compatible wrappers for browser extension APIs

This guide will walk you through integrating the Reclaim Protocol Browser Extension SDK into your own browser extension or web application. It covers installation, manifest configuration, background initialization, content script setup, and how to trigg

A security package that prevents open redirect vulnerabilities by whitelisting allowed domains

A comprehensive React UI component library designed exclusively for the AddonBone browser extension framework with customizable theming and consistent design patterns

A lightweight and fast MCP server to connect AI agents to your own Chrome browser.

Professional development toolkit with Chrome extension for source detection, element analysis, and beautiful liquid glass UI

IPFS launcher browser extension with local pet names, version management, and smart CID discovery

Powerful Selector API with Dedicated Monitoring Supports

TypeScript utilities to control password manager autofill behavior across different password managers

A TypeScript library for validating passkey/WebAuthn origin constraints in .well-known/webauthn endpoints.

A TypeScript library for Chrome extension development

A bridge that connects Perplexity's web interface to the MCP (Model Context Protocol) ecosystem

A modern template for creating Chrome extensions using Vue 3, TypeScript, Vite, and UnoCSS

A JavaScript library for interacting with local LLM capabilities via Bodhi Browser Extension

A modern scaffolding tool for creating browser extensions with ease

A framework for creating AI-powered browser extensions with support for any OpenAI-compatible provider

Gotta Log 'Em All!

Universal testing framework for Chrome extensions - Fast static analysis without browser dependencies

A cli util to retrieve a Google OAuth 2.0 refresh token

♻️ Sync state across content script, background workers and the popup in Plasmo extensions

Yeoman generator

Create a new Mellowtel browser extension with one command

Browser Market Submission

Effortless State Synchronization for Web Extensions

A tiny middleware for redux to share actions through BroadcastChannel API

Build Chrome Extensions with this Rollup plugin.

WebSocket bridge for connecting MCP clients to browser extensions

Build Chrome Extensions with this Rollup plugin.

WranggleRpc transport for browser extensions

Runtime library for browser extension protocol buffers.

Event bus for browser extensions

Messaging Library for Web Extensions

Browser Market Submission

一个基于AI的智能表单填写工具，支持自动提取表单数据、AI重写优化、表单历史记录以及智能填充。同时支持npm包和浏览器插件使用。

Use emojis in github Issues/PR

Adds memory support for chrome extensions via zustand

A command-line tool for downloading browser extensions. Supports Chrome, Firefox, Edge, Opera, and Thunderbird extensions.

Generic web automation framework with event-driven architecture

Converts a single YAML file to multiple messages.json locale files

Use chrome.storage APIs as underlying store for WranggleStorage feature layers

Zero-dependency library for analyzing browser extension capabilities from manifest files

A Create React App template for bootstrapping complex Chrome/Firefox/(any Chromium-based browser) extensions

Lightweight npm package for seamless CORS management through the CORS Unlocker browser extension. Perfect for API testing and cross-origin development.

DOM Ghost is a command-line tool that enables AI models to interact with browser DOM elements through a Chrome extension. It serves as a bridge between AI tools and web applications, allowing AI agents to manipulate and inspect web page elements programma

Event-driven Node.js server framework for coordinating browser extension automation

Browser extension for ChatGPT-buddy - AI automation extension built on Web-Buddy framework

Build Chrome Extensions with this Vite plugin.

A npm package to generate a quickstart template for creating Chrome extensions.

Build Chrome Extensions with this Vite plugin.

A library of Web-Extension Storage with inter context sync, collections, hooks, etc.

A TypeScript library for IPC communication in web applications and browser extensions

A Create React App/TypeScript template for bootstrapping complex Chrome/Firefox/(any Chromium-based browser) extensions

CLI to scaffold a TypeScript browser extension project

A simple browser extension wallet provider for React apps

Build Wave Extensions with this Vite plugin.

Complier plugin for `protoc` to generate TypeScript client/service definitions for protocol buffers.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

PostCSS plugin for reseting all styles using !important, and making your own styles !important

A comprehensive toolkit for building type-safe browser extensions with robust messaging patterns

A simple tool to get you started on building a browser extension.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

Add custom JavaScript or CSS to any webpage

Puppeteer extra plugin to interact with browser extensions, highly experimental.

Chrome transport provider with side panel support for Magic Button Cloud messaging library

A lightweight utility library for interacting with Hive Keychain browser extension.

Block YouTube Shorts and keep your feed clean

Una biblioteca para facilitar el desarrollo de extensiones de navegadores utilizando POO.

DOM injection library

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

## What is CRXJS?

Browsers extension distribution

Generate PNG icons from Iconify icon sets in multiple sizes