JSPM

Build Chrome Extensions with this Vite plugin.

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

Utilities for working with match patterns.

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

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 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.

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.

Schedule and run jobs in your background script

The standalone extension creation engine for Extension.js

The develop step of Extension.js

Build Chrome Extensions with this Rollup plugin.

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

React Portal with dynamic mounting support

Production-ready Chrome extension template with Manifest V3, TypeScript, React 19, Vite 7, comprehensive testing, and zero-config setup

Core library for building Chrome extensions with Chroma framework

React bindings for the Chroma Chrome extension framework

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

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

Manifest generation and build tooling for Chroma Chrome extensions

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

Advanced performance monitoring with browser extension capabilities - Premium tier of KanmiPerf

Powerful Selector API with Dedicated Monitoring Supports

Unofficial utility to develop browser extensions for Twitter / X

Transports for the in browser transport protocols

Lightweight SDK to trigger Reclaim verification flows from **your website** or **your own extension UI (popup/panel)**. It wires content ↔ background, opens the provider tab, generates proofs via an **offscreen** document (WebAssembly), and emits comple

Cross-platform permission management service for web3 applications

A type‑safe, embeddable JavaScript widget for Village integrations, including a built‑in events SDK.

Browser Market Submission

Browser Market Submission

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

Official TypeScript SDK for 0xio Wallet - Secure blockchain integration for dApps

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

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

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

High-performance Zustand state management for WXT web extensions with seamless cross-tab synchronization and sub-10ms React re-renders

Scaffold a multi-page browser extension powered by Vite + React from ReWar1311/react-multipage-extension-template.

Browser extension payment SDK for GateVector - Accept payments in Chrome/Firefox extensions

Type-safe, chunked message passing for WebWorkers, ServiceWorkers, and browser extensions using GADTs with zero runtime dependencies

Create a new Mellowtel browser extension with one command

Gotta Log 'Em All!

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

A library for communication between browser extension inject and content scripts

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

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

Runtime library for browser extension protocol buffers.

Moso Extension SDK for white-labeled browser extensions

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

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

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

Yeoman generator

A cli util to retrieve a Google OAuth 2.0 refresh token

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

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

WebSocket bridge for connecting MCP clients to browser extensions

Build Chrome Extensions with this Vite plugin.

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

Effortless State Synchronization for Web Extensions

Messaging Library for Web Extensions

Build Chrome Extensions with this Rollup plugin.

Build Chrome Extensions with this Vite plugin.

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

Block YouTube Shorts and keep your feed clean

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。

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

Add custom JavaScript or CSS to any webpage

A tiny middleware for redux to share actions through BroadcastChannel API

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

Visual debugging browser extension for React Responsive Easy

Build Chrome Extensions with this Rollup plugin.

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

Build Chrome Extensions with this Vite plugin.

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

Browsers extension distribution

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

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

Build Chrome Extensions with this Vite plugin.

A TypeScript library for Chrome extension development

Build Chrome Extensions with this Vite plugin.

Build Chrome Extensions with this Vite plugin.

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

A modern scaffolding tool for creating browser extensions with ease

Build Wave Extensions with this Vite plugin.

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

Build Chrome Extensions with this Vite plugin.

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

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

Build Chrome Extensions with this Vite plugin.

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

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

Event bus for browser extensions

Build Chrome Extensions with this Vite plugin.

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

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

WranggleRpc transport for browser extensions

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

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

DOM injection library

Build Chrome Extensions with this Vite plugin.

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

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

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

Build Chrome Extensions with this Vite plugin.

Generate PNG icons from Iconify icon sets in multiple sizes

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

Generic web automation framework with event-driven architecture

A simple browser extension wallet provider for React apps

Build Chrome Extensions with this Vite plugin.

Use emojis in github Issues/PR

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

## What is CRXJS?

Adds memory support for chrome extensions via zustand

Chrome Extension framework with reactive state and cross-context messaging

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

React provider for NilData Wallet browser extension authentication

CLI to scaffold a TypeScript browser extension project