Chrome Extension

Site Script Launcher

Run your own JavaScript on pages that match your URL rules. Save scripts, use wildcards, execute on demand, or auto-run after page load.

Add to Chrome Support Privacy Policy
Wildcard URL Matching Run Now + Auto-Run Edit Saved Scripts

Per-site Script Rules

Each script has its own URL pattern. Match exactly what you need, from one path to every site.

Works on Strict Sites

Includes fallback execution logic for sites with strict CSP restrictions where normal eval flow is blocked.

Built for Speed

Open popup, save script, run instantly on current tab. Keep all scripts and settings locally in your browser.

Quick Start

  1. Open the extension popup.
  2. Add script name, URL pattern, and JavaScript code.
  3. Click Add Script.
  4. Click Run Enabled Scripts On Current Tab or enable auto-run.

Wildcard Patterns

*
https://github.com/*
https://github.com/russelsese/*
https://*.example.com/*
*://localhost:*/*

What It Stores

  • Script name, code, URL pattern, enabled state
  • Auto-run preference
  • All settings in chrome.storage.local