This powerful home design tool is immersive enough to make it seem like you are moving through your future home, while being flexible enough to make it feel as if you’re working with pen and paper. SketchUp is the most comprehensive free 3D design software you’ll find on the web, says Cory. Dreaming up a new home has never been more fun. It's the most accurate way of fleshing out your ideas visually, says Cory Powell from DBS Bathrooms, who talks us through some of the best free design software currently available to home designers and interior decorators. Regardless of what home project you're working on, you’ll want to communicate your ideas with everyone involved as accurately as possible, and a room planner will help you do just that. Whether you’re doing everything yourself or turning to the pros, there's plenty of professional home and interior design software that's readily available, user friendly, affordable, and in many cases, free.