STL File Converter
Convert to and from Stereolithography (STL) securely online. Fast, free, and no installation required.
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About STL Format
Stereolithography (STL) is a 3D file format used primarily for 3D Printing and Rapid Prototyping.
STL represents a model purely as a mesh of triangles with no color, material, or scale/unit metadata. It comes in ASCII and binary variants; binary is far more compact and is what most 3D printers and slicers expect.
Frequently Asked Questions
Stereolithography (STL) is a 3D file format. STL represents a model purely as a mesh of triangles with no color, material, or scale/unit metadata. It comes in ASCII and binary variants; binary is far more compact and is what most 3D printers and slicers expect. Common use cases include: 3D Printing, Rapid Prototyping.