Name: Bernd Schwarzenbacher | @BerndSchwarzenbacher
Company name: Archi-XT
Web: https://archi-xt.com
Social: https://www.linkedin.com/in/bernd-schwarzenbacher/ | https://www.youtube.com/@archi-xt
Country / Region: Vienna, Austria
Target group: Architects, BIM managers
Supported languages: English & German
Compatibility: typically Archicad 26 – 29. Almost always for Windows and macOS
Available services: Support of a global community of Archicad users
Pricing model: Depending on the add-on/object. Most of the time there is a free demo version with limited functionality. So generally freemium. There are two small objects available free of charge on the website. All add-ons are free for Archicad EDU.
LEARN MORE ABOUT Archi-XT SOLUTIONS
"I work as a self-employed software developer in Vienna (I originally come from Kaprun, a small ski resort in the Alps). I mainly develop solutions for Archicad distributors and users. I also offer my own solutions directly to Archicad users."
"During my studies I programmed many finite element simulations. I wanted to continue working in the direction of finite elements / CAD / engineering software and looked around. I already knew Archicad from a friend. So it was also on my list. It was then by chance that the add-on API matched my previous knowledge (C++) so well and I immediately found a connection in the community."
"I have been in the Graphisoft Community since April 2021 and I am very active in the Developer Forum there."
"I mainly develop add-ons that are intended to make the daily planning work of architects easier. This includes the following add-ons:
Usually I also do a lot of contract work with very different focuses. But here too, tools that are intended to help with planning or automate special workflows predominate. I also create GDL objects as contract work, as standalone small free objects or as part of my add-ons."
"At the beginning I read a lot in the forum to find out what was needed and as a result I then developed the Pen Manager add-on “as an exercise”. The further ideas then came from various users:
"I often find the balance between new features, documentation and marketing very difficult. As an independent developer, you have everything in your own hands but you also have to manage your time well.“
"Recently I also got a little more taste of architecture myself. In February 2026, I did an architecture internship at Hoppe-Architekten in Vienna 🙂 I really enjoyed helping directly with planning in Archicad."
"Fast feedback is important to me for users. So that their changes are also immediately visible. Information that would otherwise only be visible or could only be entered via detours should be available directly. So in the end it is of course about saving time. But I also hope that my developments will reduce frustration a little."
"I have already worked with many community members and I particularly like these collaborations in our community. For A-NULL I create the A-NULL add-ons. There I work very closely with Bernhard Binder & Andreas Muttenthaler. Then I regularly develop add-ons for Richard Spracklen for his company. Botonis Botonakis, Marek Jablonski and Atakan Demirkiran are very generous with their feedback on my add-ons and all long-time users. There are a lot of Archicad users in Australia. I have already worked with several of them. Under the leadership of Davor Petranovic I worked on the BIM4BIM Audit Tool. For Daniel Schaggeman from macInteract I worked on sonar.ac. And together with Scott J. Moore I created an internal add-on for Fulton-Trotter Architects.
The documentation is available on the Archi-XT website.
"On my homepage https://archi-xt.com you can find the add-ons mentioned. The French Live TOP-Stamp add-on is distributed by C&C Pro. You can find more details here: https://www.cec.fr/pro/architecture/logiciels/plug-in-multizone-dynamique"