Download JS-Exec chrome extension. Inject your own JavaScript in any webpage. and install in your Google chrome browser. This is Direct JS-Exec Crx download for Chrome it is also called JS-Exec offline CRX for chrome Download. This JS-Exec is used to Inject your own JavaScript in any webpage.
Inject your Javascript into the webpage
Inject JavaScript code into every page (e.g. to help with debugging). For example, make your own wrapper for console logging.
User JavaScript and CSS on any website
Run custom JavaScript on any website.
Inject jQuery into all frames on any page.
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.