WikiSimplia is a Chrome extension developed by tasinet. It falls under the Browsers category and specifically the Add-ons & Tools subcategory. This free extension aims to simplify Wikipedia's layout by hiding the menu, while still allowing it to be expanded via a button.

Have you ever found yourself rarely using Wikipedia's left-hand side menu? If so, WikiSimplia is here to help. With this extension, you can get rid of the dead space created by the menu and enjoy your content in full page width.

WikiSimplia collapses the menu by default, but it can still be accessed through an icon located in the top left corner. Simply click the menu icon when you need to show the menu. This extension also works on most mediawiki wikis, providing a streamlined browsing experience.