
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.
Download Learn more →

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.
Buy now Learn more →
Trusted
750,000
DIALux Users
> 450
DIALux Members
27
Languages
News & Articles

More control over working planes in DIALux evo
Create working planes automatically or add them only where needed. Save the height and margin area as default values for your next projects.

New in DIALux evo 14: Same objects? One click is all it takes.
With DIALux evo 14, working with objects that appear multiple times in your project is now much easier. You probably know the situation: a certain chair, door, window or luminaire has been placed several times in your project, and you don’t want to search for and click every single object manually. That’s exactly what the new “Select all of this type” function is for.

Coming Soon: Merge Multiple IFC Models Directly in DIALux evo
In BIM workflows, a project often consists of more than just a single model. In addition to the building model, there are usually discipline-specific models, for example for HVAC, plumbing, or electrical planning. Until now, these models had to be merged using external software before being imported into DIALux evo. We are currently working on a new feature that will allow you to import multiple IFC files directly into DIALux evo and merge them into a single, unified model.