Sweethome3D is the best interior design software available in the market which is absolutely free. If you wanna rearrange your home furniture or looking to change the home layout entirely different and wanna know in advance how it looks like or wanna design a home plan from scratch, i bet this software is all you need. More importantly is totally FREE!!

Website : http://sweethome3d.com
Minimum Requirements : Windows 7/8.1/10 , Mac OS or Linux
File Size : 49.1 MB

source