CAD File Converter

The converter accepts STEP and STP files containing CAD parts, bodies, or assemblies. Both extensions refer to the same general standardized CAD exchange format.

STEP and STP models can be converted to STL, OBJ, or 3MF. Each output format is intended for different workflows and preserves a different set of model properties.

Choose STL for broad slicer and 3D printing compatibility, OBJ for mesh editing and visualization, or 3MF when you want explicit units and modern manufacturing support.

Tessellation quality determines how precisely curved CAD surfaces are approximated by triangles. Higher quality creates smoother and more accurate meshes but increases file size and processing time.

No. STL, OBJ, and 3MF are mesh-based formats. Parametric features, constraints, sketches, construction history, and exact CAD surfaces are not preserved.

OBJ and 3MF can preserve separate parts or groups where the source structure is available. Standard STL normally requires parts to be combined or exported as separate files.

This converter focuses on geometry, tessellation, and units. STEP color transfer is not exposed as a guaranteed export feature.

No. This tool converts precise STEP CAD geometry into mesh formats. Turning an arbitrary mesh back into an editable CAD solid requires surface reconstruction and is not a normal file-format conversion.

No. Parsing, tessellation, preview, and export run locally in your browser.