This software program aims to help virtually anyone to produce the best quality rendering as quickly as possible. Kerkythea is a freeware that provides you with a bunch of tools to produce high-quality renders using physically accurate materials and lights. The Best Free Landscape Design Software for Windows & Macīelow are the top 10 free landscape design software programs for Windows and macOS computers. Whether you’re planing out a deck, patio, or private garden, either of these software programs listed below can help you out. Having a free landscape design software that provides you with many tools you would find in PRO software programs is something most homeowners and garden designers crave for. Many free software solutions allow you to create landscape/garden design plans even when you don’t know pretty much about creating designs with specialized software. You don’t need expensive software programs to visualize how you want your garden to appear.