
Lighting design made easy with DIALux
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. Use real luminaires provided by DIALux Members and bring your project to life.
Download free of charge DIALux Pro ↗
We simplify lighting design for you:
DIALux is the world's leading software for lighting design. Available in 27 languages,
free of charge and tailored to your needs.

DIALux
Design, calculate and visualise indoor, outdoor, street and emergency lighting. Work with 2.5 million luminaires from our > 450 DIALux Members. The free version of DIALux evo gives you all the tools you need to create stunning lighting solutions.
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DIALux Pro
Discover the unlimited possibilities of lighting design with DIALux Pro. Our advanced version of DIALux evo is designed to speed up your workflow and increase your productivity. DIALux Pro supports you with a wealth of additional features and is constantly being expanded. Available to subscribe.
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Trusted
750,000
DIALux Users
> 450
DIALux Members
27
Languages
News & Articles

Learn DIALux Worldwide – Our Global Trainers
Lighting design is a global profession and learning the right tools should be just as accessible. That’s why, beyond our courses held hybrid and on-site, we have built a worldwide network of certified DIALux trainers who support users locally, in their own language, and directly on site.

New in DIALux evo: Split models step by step
If you frequently work with self-built models in DIALux evo and want to adapt them throughout your design process, your workflow just got a lot easier.

Outlook: Sports and floodlighting design in DIALux evo
We know that floodlighting design can quickly become complex in the current version of DIALux evo. This is especially true for sports facilities and symmetrical pole arrangements, where precisely aiming luminaires often still involves a lot of manual work. This is exactly what we are working on right now: we are preparing a solution that will make your planning process much easier, faster and more convenient.