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Features

This page details the technical features and capabilities supported by Scriptmonkey.

Manifest V3 User Script Engine​

  • Native Execution: Leverages Chrome's official chrome.userScripts API to register and run user scripts without content script workarounds.
  • Execution World: Executes scripts directly inside the web page's MAIN JavaScript world, allowing direct access to page DOM objects and window globals.
  • Execution Timing: Supports @run-at configurations to run scripts at document-start (document_start) or document-idle (document_idle).

Dashboard Editor​

  • Editor Interface: Full-screen management dashboard built with CodeMirror 6, including line numbers, bracket matching, and JavaScript syntax highlighting.
  • Syntax Validation: Provides real-time syntax checking and inline error indicators as you type.
  • Metadata Inspector: Automatically parses ==UserScript== header blocks into collapsible inspection cards for General info, Match rules, Execution timing, and Custom keys.
  • Script Creation & Templates: Create new user scripts directly in the dashboard using a pre-defined minimal template block via the "+ New Script" button.
  • File Import: Supports importing local .js and .user.js files via file picker or drag-and-drop onto the editor.
  • Unsaved Changes Guard: Prompts for confirmation before closing or navigating away with unsaved editor modifications (Ctrl+S shortcut supported).

Toolbar Extension Popup​

  • Badge Indicator: Displays the number of active user scripts matching the current web page directly on the extension icon badge.
  • Contextual Categorization: Evaluates the active tab URL to group scripts into active scripts on the current domain versus other installed scripts.
  • Quick Actions: Toggle individual scripts on or off, trigger manual update checks, open the dashboard editor, or delete scripts from the popup.

Pattern & Rule Matching​

  • Chrome Match Patterns: Evaluates standard Chrome @match pattern strings (e.g. https://*.example.com/*).
  • Include & Exclude Directives: Supports @include and @exclude patterns with wildcards (*), explicit regular expressions (/.../), and top-level domain (.tld) aliases.
  • Rule Precedence: @exclude rules are evaluated first to override any matching @match or @include specifications.

Script Updates & Version Management​

  • Remote Header Inspection: Fetches and parses remote ==UserScript== header blocks from defined @updateURL or @downloadURL endpoints.
  • Version Comparison: Compares installed versus remote version strings using semver and numerical version segment comparison.
  • Update Workflows: Displays version diff indicators and supports updating individual scripts or running batch updates.

Local Data Storage & Privacy​

  • Local Storage API: Stores all user script code, parsed metadata, and application state in chrome.storage.local.
  • Ad-Free & Tracking-Free: Contains zero advertisements, sponsored links, analytics tracking, or background telemetry.
  • No External Sync: Runs entirely local to the browser with no external cloud synchronization.