3D Model Converter

The converter supports STEP and STP as CAD input formats and STL, OBJ, and 3MF as mesh formats. Available output options depend on the selected source format.

No. Mesh formats can be converted between STL, OBJ, and 3MF. STEP and STP can be converted into those mesh formats, but arbitrary meshes are not converted back into editable STEP CAD solids.

CAD formats such as STEP describe precise surfaces and solid geometry. Mesh formats such as STL, OBJ, and 3MF approximate surfaces using triangles or other polygons.

3MF is generally the most capable option here because it supports explicit units and additional manufacturing information. STL remains useful when maximum compatibility with older software is required.

OBJ is widely supported by mesh editors, rendering applications, and game-development tools. STEP is preferable when precise CAD surfaces and engineering workflows must remain intact.

STEP and 3MF can contain explicit units. STL and OBJ often lack reliable unit information, so you may need to select the intended unit and verify the resulting dimensions.

This converter focuses on supported geometry and units. Colors, materials, textures, and advanced manufacturing metadata are not guaranteed to transfer.

No. Format conversion does not automatically repair damaged geometry or reduce the triangle count. Use the Mesh Analyzer to identify geometry problems or the Mesh Simplifier to reduce model complexity.

Large models can be processed, but browser memory and device performance impose practical limits. Complex STEP assemblies and very dense meshes may require more time and memory.

No. Model parsing, preview, conversion, and export are designed to run locally in your browser.