Vimsert is a free Chrome extension developed by gabriel that brings the power of Vim to any textarea on the web. With Vimsert, you can open up a code editor modal using the Ace editor with Vim keybindings enabled.

Once installed, Vimsert allows you to open the code editor for any textarea by simply pressing Ctrl + i. This opens up a modal where you can edit the text using the familiar Vim commands. To save your changes, you can use the command Esc, :w. And to close the editor, simply press Esc, :q. If you want to save and close at the same time, you can use the command Esc, :wq.