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We just fixed downloads: every STL now comes straight from fast, reliable storage, saved under its own name, we're making 10,000 STL files and dozens of new tools, so things might break. We'll fix them ASAP.

StarForge KitsSTARFORGE

Building Bricks StarForge 3D Modeling Software

Custom LEGO Compatible Bricks to Print

Building bricks of any stud count, as a brick or a plate, come from this free maker of custom bricks and LEGO®-compatible bricks with 8 mm stud pitch, round tubes underneath and pins on one-wide parts. As printers make studs a little fat or thin, the Fit Test Strip steps the stud size by 0.05 mm across five plates before 3D printing. Each part downloads as a 3D Print STL File, a brick STL from StarForge 3D Modeling Software for building blocks; not made, sponsored or endorsed by the LEGO Group.

81+ StarForge 3D Modeling Software

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AI Max

Credits451504501,5004,000
STL Downloadsup to45up to150up to450up to1,500up to4,000
3D ToolsUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
AI 3D Modelsup to4up to15up to45up to150up to400
Sell 3D PrintsIncludedIncludedIncludedIncludedIncluded
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