Keymapper is a free Chrome add-on developed by yinm that allows users to assign various actions to any key of their choice. With Keymapper, you can streamline your browsing experience by easily accessing frequently used features and functions.

One of the main features of Keymapper is the ability to copy the title and URL of a webpage in a specified format. This can be incredibly useful for those who need to quickly save or share webpage information. Additionally, Keymapper enables users to navigate through webpages with ease by providing hotkeys for going back, going forward, scrolling up, scrolling down, scrolling to the top of the window, and scrolling to the bottom of the window.

Furthermore, Keymapper allows users to pin tabs for easy access to their favorite websites. This can be particularly convenient for individuals who frequently visit certain websites and want to keep them readily available.

Overall, Keymapper is a handy tool for Chrome users who want to customize their browsing experience and enhance their productivity. With its intuitive interface and versatile hotkey options, Keymapper makes it easy to navigate through webpages and perform actions with just a few keystrokes.