Free WUFI® Versions

After applying for a free user account at our Online Shop, the no-cost versions of WUFI® can be immediately downloaded.

WUFI Pro Screenshot

WUFI® Light (Pro)

For non-commercial applications, WUFI® Light is a reduced-functionality version of WUFI® Pro that is available for download at no cost.

The use of WUFI® Light is limited to 4 weeks.


Together with Oak Ridge National Laboratory (ORNL) Fraunhofer IBP has developed a special version of WUFI® for North America. WUFI® ORNL is a functionally limited free version of WUFI® Pro for non-commercial purposes. It contains climate data for 62 cities in the USA and Canada which are all available in the free version.

WUFI Plus Screenshot

WUFI® Plus Free & WUFI® Passive Free

WUFI® Plus Free and  WUFI® Passive Free are two no-cost versions of WUFI® Plus and WUFI® Passive. They are thermal-only versions and limited in features. Parts of the software have been supported by Germany’s Federal Ministry for Economic Affairs and Energy.

Contrary to the full versions, the no-cost versions don´t provide calculations of moisture transport and storage. Furthermore, the user-defined entries in the database and export functions are limited.

The use of both versions is limited to 1 year.


Last Update: April 16, 2019 at 11:13