Duplicate Tab by awal.io Finally! An open source extension for duplicating a tab with a click or keyboard shortcut. Check it out in the Chrome Web Store. FAQs What is the default keyboard shortcut? Ctrl+Shift+U, or on Mac Cmd+Shift+U How can I customize the keyboard shortcut? Choose your shortcut in chrome://extensions/shortcuts. Where can I find the source code? https://github.com/alexwal/duplicate-tab-chrome-extension