Auto Reload is free and open source! Visit https://github.com/garrettrayj/auto-reload for downloads and news. Purchasing on the App Store supports development. Thank you
After installation, open Auto Reload to add the extension to Safari. Enable or disable the toolbar item in Safari preferences. Drag the application to trash to completely remove the extension. Be advised that rapidly reloading web pages comes with performance and energy costs; and may annoy webmasters.