Scriptmonkey

Lightweight Manifest V3 Chrome extension for managing user scripts locally in your browser.

Overview

Scriptmonkey is a minimal, free, open-source and local Tampermonkey alternative built specifically for Google Chrome's Manifest V3 userScripts API. It features a management dashboard with a code editor, metadata inspection, and a quick-action toolbar popup.

📖 Full Documentation: Visit the Website or read the Docs.

Quick Start

1. Install Scriptmonkey from the Chrome Web Store.
2. Open chrome://extensions in Chrome and enable Allow User Scripts for Scriptmonkey.
3. Open the Popup or Dashboard to create, import, or manage your user scripts.

Features

• Manifest V3 Native Execution: Uses Chrome's chrome.userScripts API to register and run scripts securely in the page's MAIN world context.
• Local Dashboard & Code Editor: Integrated CodeMirror 6 JavaScript editor with syntax highlighting, live error validation, and Ctrl+S quick save.
• Toolbar Controls & Badge: View active scripts per tab, toggle script states, check active count badge, and delete scripts from the extension popup.
• URL Pattern Matching: Supports @match, @include (wildcards, regex, .tld replacement), and @exclude rules.
• Version Update Checks: Fetches remote @updateURL / @downloadURL endpoints and compares versions to provide per-script or batch updates.
• Complete Privacy: All scripts and settings are saved locally in chrome.storage.local.

Supported Metadata Keys

Scriptmonkey parses standard ==UserScript== header blocks.

For details on supported metadata keys and how they are handled, see Metadata Support.

Documentation Links

• 📚 Overview
• ⚙️ Features
• 🏷️ Metadata Support
• 📐 Technical Architecture
• 🛠️ Development Guide
• 📋 Planned Features
• 🔒 Privacy Policy