This chrome extension converts the x-system characters into their proper Esperanto characters.
This converts the characters live, as you type.
Example: cx ⟶ ĉ gx ⟶ ĝ hx ⟶ ĥ jx ⟶ ĵ sx ⟶ ŝ ux ⟶ ŭ
Since Chrome extensions are no longer published for Linux / Mac / Windows but only ChromeOS, you will need to do the following :
At the top of this page you will find a green button named Clone or download click on it. On the panel that appears, click Download ZIP.
Once downloaded, find the file on your computer. You should have the option to extract it after making a right click on it. Once extracted, you will have to have a new folder, which corresponds to the extension.
Write chrome://extensions in the address bar and validate. Check the box at the top right named Developer mode.
Click the Load unpacked extension button and specify the location of the extension folder you obtained in the first step. The extension is now ready for use (the icon added in the address bar).