This is a category of articles relating to 3D computer graphics software which can be freely used, copied, studied, modified, and redistributed by everyone that obtains a copy: "free software" or "open source software". Typically, this means software which is distributed with a free software license, and whose source code is available to anyone who receives a copy of the software.
For software that is distributed free of charge but under conditions that are more restrictive than the free software license, see Category:Freeware 3D graphics software
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