JSPM

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)

Utilities for working with match patterns.

Build Chrome Extensions with this Vite plugin.

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


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

WebExtension plugin for Webpack. Supports code-splitting and dynamic import.

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)

Browser transport implementations for Model Context Protocol (MCP) - postMessage, Chrome extension messaging, and iframe communication for AI agents and LLMs

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

Develop, build, preview, and package Extension.js projects.

The standalone extension creation engine for Extension.js

Headless wcagcheckr accessibility audit runner for CI/CD pipelines. Drives the wcagcheckr Chrome extension via Playwright, runs full-page audits across the state matrix (108 combinations: hover, focus, dark mode, RTL, breakpoints), outputs JSON / SARIF /

The cross-browser extension framework. Build Chrome, Edge, Firefox, and Safari extensions with no build configuration.

Get browser extension(webextension) item meta from Chrome Web Store, Firefox add-ons, and Microsoft Edge Add-ons.

MCP server for Kapture browser automation

Parse and resolve browser extension manifest fields to absolute paths.

rsbuild plugin for chrome/web extension

Schedule and run jobs in your background script

Build Chrome Extensions with this Rollup plugin.

SDK to trigger Reclaim zero-knowledge proof verification flows from your website or browser extension.

Local bridge that exposes the AI coding agents installed on your machine — Claude Code (CLI), Codex (CLI), and Antigravity CLI (formerly Gemini CLI, which remains available for business/enterprise) — to the ChatPanel Chrome extension over a localhost SSE

Shared types, constants, and utilities for the OpenTabs platform

Bridge Chrome's debugger API to WebSocket — control your existing browser with Playwright/Puppeteer via CDP

Let Pi use your existing signed-in Chrome profile after explicit authorization.

SDK for building OpenTabs plugins — give AI agents tools to interact with any web application

Claude Engine — WebSocket adapter for @anthropic-ai/claude-agent-sdk. Single serve mode serves all consumers (CLI / Chrome extension / native_host) over a unified JSON-over-WebSocket protocol.

The JavaScript library for https://extensionpay.com - payments for browser extensions, no server needed.

Gather meta information from chrome web store

Build tools for OpenTabs plugins — bundles adapters, generates tool schemas, and registers plugins

Multi-execution-context framework with reactive state and cross-context messaging for Chrome extensions, PWAs, and worker-based applications

Monetize SDK — bundled billing client and paywall render engine for web and Chrome extensions

TypeScript-first RPC library for seamless bi-directional communication between processes, workers, and contexts. Cross-runtime compatible with Node.js, Deno, Bun, and browsers.

Bridge your browser to Claude Code CLI. The local server for the ClaudeLink Chrome extension — send screenshots, page content, and custom commands from any webpage directly to Claude Code.

CryptoGuard SDK for Chrome extensions and Node.js servers - Multi-platform binary transparency verification

CLI for OpenTabs — start the MCP server, manage plugins, and configure your AI agent browser bridge

62+ Chrome Extension API tools for Model Context Protocol (MCP) - Let AI agents control tabs, bookmarks, history, storage, and more

Chrome extension that bridges AI agents to web applications through the user's authenticated browser session

Native Messaging Host for Mtop DevTools — bridges Chrome Extension and local socket server

MCP server that turns browser tabs into AI agent tools via a Chrome extension plugin system

MCP server for controlling the browser via Page Agent extension

MCP server for chromeflow — lets Claude Code or Codex CLI drive your real Chrome browser with sessions intact. Plugin install recommended; npx chromeflow for manual MCP wiring.

Scaffold a new OpenTabs plugin — create MCP tools that interact with web apps through the browser

Drive a real Chrome browser over MCP. A stdio MCP server (CLI) plus an MV3 extension, behind one pluggable Executor (extension via chrome.scripting, or a Playwright CDP fallback).

Monetize SDK for Chrome extensions — single source of truth via offscreen document, drop-in compatible with @monetize.software/sdk public API

SideButton MCP server for AI agents — REST API, web dashboard, knowledge packs, and workflow engine

MCP server that gives AI agents Unix-style filesystem commands (ls, cd, grep, click, type) to drive Chrome. Single-tool interface, concurrent multi-agent isolation, per-lane tab groups.

Powerful Selector API with Dedicated Monitoring Supports

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

AI Helper 代理服务 - 为 Chrome 扩展提供本地文件读写和系统命令执行能力

MCP Server for Mtop DevTools - enables AI to interact with Chrome browser requests and logs

Core library for building Chrome extensions with Chroma framework

Model-agnostic MCP connector for the PixiJS Devtool Pro inspector — exposes the live Pixi/Phaser scene graph and Spine/Sprite controls to any MCP client.

Client SDK & CLI for Mtop DevTools — communicate with Chrome Extension via Unix Socket

Local WebSocket hub + CLI to control the yundijie-trip Chrome extension.

Browser Extension Manager dependency manager

Types and helpers for writing autochatter automation configs. defineConfig, ExecuteCtx, ChatData, and the full ambient surface the extension consumes.

AI-native MCP debug layer for PWAs: inspect live service workers, CacheStorage, IndexedDB, web storage, installability, and React/Vue/Svelte/Solid + Redux/Zustand/Pinia/Jotai state in your REAL logged-in browser profile. Answers 'why won't my service work

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


Let your AI coding agent test its own frontend work. Connects Claude Code, Cursor, and any MCP client to your real Chrome browser — real sessions, real cookies, no headless conflicts.

jQuery-like AJAX method for multiple environments

Open-source MCP server for browser automation — gives AI agents control of a real Chrome browser via extension

MCP server for pūrmemo - AI conversation memory that works everywhere. Save and recall conversations across Claude Desktop, Cursor, and other MCP-compatible platforms. Intelligent context extraction, smart titles, living documents.

Convert a Chrome extension into a Safari Web Extension (macOS/iOS) ready for local dev or CI/CD.

A tool for deploying WebExtensions to multiple stores.

Browser control framework for agents via Chrome extension + WebSocket

React bindings for the Chroma Chrome extension framework

MCP server that lets an MCP client (Claude Code, Codex, any MCP client) drive a real, logged-in Chrome profile. Ships the MonkeySee Chrome extension bundled.

A dead simple routing solution for browser extensions using React

MCP server that controls YouTube playback in your browser via the Playback MCP extension — play, seek, loop sections, save timestamps, build a video library

Grab any website's design system. Capture pages, extract components, and generate a portable Tailwind component library.

MCP server and native host bridge for controlling Chrome through the Codex Chrome extension.

OpenTabs plugin for Google NotebookLM

IdentSecure - One account. Every server. Secured.

OpenTabs plugin for Priceline

Browser MCP — control your real Chrome from Claude Code. 34 tools, CAPTCHA solving, date pickers, autocomplete combobox, overlay dismissal, file upload, multi-session, human-in-the-loop.

Run npx repaint-plugin in your project — bridges the Repaint Chrome Extension to your source files for 100%-accurate visual-to-code diffs

Download Chrome and Edge extension source code in one command — audit, deobfuscate, beautify, and diff. Paste a store link, get readable source on disk.

Browser control framework for agents via Chrome extension + WebSocket

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

Clean-room, open-source browser automation for AI agents — drive your real Chrome (real logins) across multiple profiles IN PARALLEL. A lightweight Node daemon + MV3 extension, no closed-source dependency.

OpenTabs plugin for Reddit

MCP server for interactive Chrome extension testing via Playwright — load, interact, assert, inspect storage, network, badges, messaging, tabs, and more.

OpenTabs plugin for X (Twitter)

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

A scaffolding CLI for quickly building browser extensions

Native messaging host (local Node.js bridge) for the Claude Code Browser Chrome extension. Bridges Chrome and your existing Claude Code CLI over Chrome's native messaging API so a Claude Code agent session can navigate, screenshot, snapshot the DOM and pi

浏览器控制工具 — 让 AI Agent 通过 CLI 或 MCP 协议操控 Chrome 浏览器

Gotta Log 'Em All!

Local browser runtime and MCP tools for AI agents.

OpenTabs plugin for Hack2Hire

MCP server for Chrome Web Store extension management (V2 API)

MCP server for Chrome extension development with Web Store automation. Fork of chrome-devtools-mcp with extension-specific tools.

Communicate with AIV Chrome Extension

OpenTabs plugin for Google Gemini


MCP server + Chrome extension that gives AI agents control of your real browser with existing sessions and logins

OpenTabs plugin for Microsoft PowerPoint Online

OpenTabs plugin for Fiverr

MCP server that exposes screenshots, HTML snapshots, and selections from the SeeWhatISee Chrome extension to any MCP client.

OpenTabs plugin for Microsoft Word Online

CLI for the Dassi Chrome extension — run browser automation from the terminal

OpenTabs plugin for ChatGPT

OpenTabs plugin for Zillow real estate search

Plumbus browser-extension scaffolder — emit wxt Chrome/Firefox extensions wired to capabilities

OpenTabs plugin for Microsoft Outlook — email and calendar

OpenTabs plugin for Microsoft Excel Online

OpenTabs plugin for Slack (standard workspaces). For Enterprise Grid, use slack-enterprise.

OpenTabs plugin for Instagram

OpenTabs plugin for Retool

OpenTabs plugin for The Home Depot

A developer tool for testing Socket.IO APIs. Connect to any Socket.IO server, emit events with JSON payloads, capture real-time responses, and manage server profiles — all from a clean dark UI.

OpenTabs plugin for Figma

OpenTabs plugin for Calendly

OpenTabs plugin for Cloudflare

Puppeteer alternative for Chrome extensions. A module for Chrome extensions that functions similarly to Puppeteer.

OpenTabs plugin for YouTube Music

OpenTabs plugin for Chipotle Mexican Grill

OpenTabs plugin for PostHog

OpenTabs plugin for Google Calendar

OpenTabs plugin for Netlify

MCP server bridging Claude Code / Cursor / Codex etc. to the webXport Chrome extension. Lets AI agents call user-recorded browser data-export workflows via MCP.

OpenTabs plugin for GitLab

OpenTabs plugin for Walmart

OpenTabs plugin for Tripadvisor

OpenTabs plugin for Grafana

OpenTabs plugin for Telegram

Shared wire types and zod schemas for MonkeySee — the compatibility spine between the MCP bridge and the Chrome extension.

OpenTabs plugin for Supabase

OpenTabs plugin for Bluesky

OpenTabs plugin for LinkedIn

OpenTabs plugin for npm registry

OpenTabs plugin for YNAB (You Need A Budget)

OpenTabs plugin for Microsoft OneNote

OpenTabs plugin for Webflow

OpenTabs plugin for Zendesk

OpenTabs plugin for Best Buy

OpenTabs plugin for Instacart

OpenTabs plugin for Slack Enterprise Grid

OpenTabs plugin for MongoDB Atlas

OpenTabs plugin for Yelp

OpenTabs plugin for Airtable

OpenTabs plugin for HCP Terraform (Terraform Cloud)

OpenTabs plugin for Google Analytics

OpenTabs plugin for Coinbase

OpenTabs plugin for Fidelity Investments

OpenTabs plugin for CircleCI

Local bridge server for Vortex (Native Messaging ↔ HTTP/WS).

OpenTabs plugin for OnlyFans

OpenTabs plugin for Vercel

OpenTabs plugin for Facebook

OpenTabs plugin for YouTube

OpenTabs plugin for Discord

OpenTabs plugin for Jira

OpenTabs plugin for AWS Console

Village Chrome Extension SDK for Partner Integrations

OpenTabs plugin for Shortcut

OpenTabs plugin for DoorDash

Pre-submission compliance linter for Manifest V3 Chrome extensions: flags likely Chrome Web Store rejection risks (unused/excessive permissions, MV3 violations, broken packaging) before you submit.

OpenTabs plugin for Robinhood

OpenTabs plugin for Hacker News

OpenTabs plugin for Claude

OpenTabs plugin for Linear

OpenTabs plugin for Microsoft Azure Portal

OpenTabs plugin for GitHub

OpenTabs plugin for ClickUp

OpenTabs plugin for Google Maps

React components for app store and platform download buttons (App Store, Google Play, Chrome Extension, Windows, macOS, Linux)

OpenTabs plugin for LeetCode

OpenTabs plugin for Costco Wholesale

Ship browser extensions to Chrome Web Store, Firefox Add-ons, and Edge Add-ons from CI or your terminal. One config, three stores, dry-run first.

OpenTabs plugin for eBay

交互式 Node.js CLI，用于生成生产级多场景项目模板

OpenTabs plugin for CockroachDB Cloud

OpenTabs plugin for Sentry

OpenTabs plugin for Airbnb

OpenTabs plugin for Snowflake — run SQL queries, browse database schemas, and manage worksheets

OpenTabs plugin for Netflix

OpenTabs plugin for Booking.com

OpenTabs plugin for Spotify

OpenTabs plugin for Uber

OpenTabs plugin for Tinder

OpenTabs plugin for Docker Hub

OpenTabs plugin for Expedia

OpenTabs plugin for Bitbucket

CLI-first local bridge for automating open PlayCanvas Editor tabs from AI coding agents.

OpenTabs plugin for Twilio Console

OpenTabs plugin for Google Drive

OpenTabs plugin for Craigslist

OpenTabs plugin for Microsoft Teams

Multi-environment logger with smart detection, file-level overrides, and beautiful console formatting. Test it live: https://logger.joesangiorgio.com/

OpenTabs plugin for Todoist

OpenTabs plugin for WhatsApp Web

OpenTabs plugin for Stripe Dashboard

OpenTabs plugin for Asana

CLI tool for querying ChatGPT and Gemini via Chrome extension. No Puppeteer required.

AI-powered browser debugging assistant. Detects runtime errors, reads your source files, and applies AI-generated fixes without leaving the tab.

OpenTabs plugin for Medium

OpenTabs plugin for Wikipedia

OpenTabs plugin for ClickHouse Cloud

OpenTabs plugin for Twitch

OpenTabs plugin for Redfin real estate

OpenTabs plugin for Stack Overflow

OpenTabs plugin for Google Docs

OpenTabs plugin for Panda Express

OpenTabs plugin for Target

OpenTabs plugin for MiniMax Agent

OpenTabs plugin for New Relic

OpenTabs plugin for Google Cloud Console

OpenTabs plugin for Domino's Pizza

OpenTabs plugin for Starbucks

OpenTabs plugin for Confluence

OpenTabs plugin for Amplitude analytics

OpenTabs plugin for Notion

Use Vue CLI generate chrome extension template | generate chrome extension with vue.js

OpenTabs plugin for Steam Store

OpenTabs plugin for Pinterest

OpenTabs plugin for TikTok

OpenTabs plugin for Tumblr

OpenTabs plugin for Datadog

Drive your real Chrome browser from any MCP-compatible AI client (Claude Code, Cursor, Codex, Continue, Windsurf). CLI + MCP server with procedure runtime.

MCP server + CLI for connecting the Taco Chrome extension to AI agents

OpenTabs plugin for Carta

Next.js for Chrome extensions. File-based entrypoints, automatic Manifest V3 generation, and React routing in a single Vite-powered CLI.

OpenTabs plugin for SQLPad — run SQL queries, browse database schemas, and manage saved queries

DOMBridge MCP Server — AI-agent bridge for the DOMBridge Chrome extension, with CLI support

Visual annotation tool for Pi coding agent with inline note cards

OpenTabs plugin for Glama

Blocks the Figma HTML-to-Design Chrome extension from capturing your web page content.

DOM element highlighting utilities for testing and automation

Promise wrapper for the Chrome extension API so that it can be used with async and await rather than callbacks

Scaffold a new Extro extension. The official starter for the Extro framework.

A simple library for typed messaging between different parts of a Chrome extension (background script, content script, popup, etc.)

Scaffolding your chrome extension, multiple boilerplates supported!

Cross-platform React components with beautiful themes and OKLCH color sciences - Now with mobile (Capacitor) support

LionScraper bridge daemon, thin MCP stdio, and CLI — local HTTP + WebSocket to Chrome extension

A local app package inspector — 6 platforms, 16 formats, runs in browser and Node.js

JS Eyes browser native messaging host and cross-platform installer

Chrome Extension Subscriptions, Paywalls & A/B Testing SDK — Stripe Connect, MV3-native, signed offline cache.

PlayaYield Chrome Extension Ad Monetization SDK for Manifest V3

MCP server bridging AI coding agents (Cursor, Claude Code, Codex, Windsurf, Kiro, Antigravity) to the Customaise Chrome extension. 18 tools: UserScripts, AgentScripts, WebMCP calls with HITL consent, visual DOM targeting, tab control.

Manifest generation and build tooling for Chroma Chrome extensions

Vite plugin powering Extro: file-based entrypoints, Manifest V3 generation, and React routing for Chrome extensions.

MCP server for Shadowmark — screen recording + annotations bridge for AI agents (SQLite-backed, dual stdio/HTTP-SSE transport)

Lightning-fast browser extension build system with first-class HMR, interactive scaffolding, and cross-browser support (Chrome, Firefox, Safari, Edge — Manifest V3).

CLI tool to scaffold a Chrome Extension project based on Vue 3 + Vite + TypeScript

Shared TypeScript types for Extro.

MCP server that lets AI agents build, run, inspect, and publish browser extensions. 26 tools for scaffolding, live DOM inspection, log streaming, and store-ready builds across Chrome, Edge, and Firefox.