GDL (Geometric Description Language) is the scripting language used to create parametric objects in Graphisoft ArchiCAD. It is a powerful but niche technology with a scattered community spread across dozens of websites, forums, and manufacturer portals.
gotoGDL brings these resources together in one place: a manually curated, categorised directory of everything relevant to GDL development — from official documentation to manufacturer BIM libraries, from community forums to commercial object shops.
gotoGDL is maintained by b-prisma, a studio specialising in GDL object development for manufacturers and architects. Related projects include selfGDL.de (GDL command reference) and GDLschmiede.de (GDL knowledge base).
Every link is manually reviewed before it is added. The goal is relevance over quantity: only resources that genuinely help GDL developers make it into the directory.
Know a GDL resource that belongs here? Send it to 26@gotogdl.net — please include the URL, a brief description, and the category that fits best.
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