GhostText
Use your text editor to write in your browser
... document. Once you have installed both browser and editor extensions, you can activate GhostText in the current browser tab by clicking its icon in the toolbar or by using a keyboard shortcut. The editor needs to be launched first. In some editors you’ll need to run the Enable GhostText command to start the server. Refer to the documentation of each extension. Sublime Text doesn’t need this step.