Sweet Home 3D is a free & open-source interior design application (written in Java) that helps you draw the plan of your house, arrange furniture on it and visit the results in 3D.[0]

Binary builds provided for Linux, macOS, Windows and in form of JAR-app for other platforms.[1,2]

Also it may be used online.[3]

[0] http://sweethome3d.com/

[1] http://sweethome3d.com/download.jsp

[2] https://sourceforge.net/projects/sweethome3d/

[3] http://sweethome3d.com/SweetHome3DOnlineManager.jsp