Design, calculate and visualise light for indoor and outdoor areas. With DIALux you can create individual rooms, multi-storey buildings, paths, car parks and streets.

Dec 16, 2025 · Download DIALux, the worldwide standard in lighting design software. Free of charge. Design light for single rooms, whole buildings, outdoor area, street lighting and daylighting.

With DIALux, you design lighting for indoor and outdoor areas – using real luminaires, standards-compliant calculations and realistic visualizations. Perfect for anyone who wants to use light effectively.

Learn the features of the software DIALux and get many tips & tricks to plan, calculate and visualize the light optimally. Expand your knowledge in the fields of lighting technology, lighting design and lighting …

Plan indoor lighting for everything from individual rooms to entire buildings – and combine daylight and artificial light for realistic results. DIALux evo offers standards-compliant calculations, vivid …

Increase the productivity and efficiency of your work with DIALux Pro. The DIALux Pro Version is the all-in-one package to speed up your lighting design.

With DIALux we offer you a powerful and comprehensive planning tool that provides you with all the necessary functions for professional lighting design free of charge.

With DIALux we offer a high-quality international planning tool that provides all functions for professional lighting design free of charge. For those who want to optimise their workflow, we offer exclusive Pro …

Step-by-step tutorials, helpful seminars and online courses from product experts to help you plan lighting and get the best out of your project with DIALux evo.

Learn lighting design with DIALux Pro – the professional lighting design software used in architecture, interior design, and electrical engineering. Teachers and students receive DIALux Pro free of charge …