Convert STEP (STP) Files | High-Precision 3D CAD File Exchange

Convert polyface mesh to solid and import / export many 3D mesh and solid file formats including STL (Stereo-Lithography), SKP (Trimble SketchUp), OBJ (Wavefront), 3DM (Rhino), and others.

Automapki Application

Overlay DWG drawing entities on top of public satellite imagery provided by Open Street Map, Map Quest, Open Aerial, or any user defined WMS / WTS base layers.

Autoconverter

Import, export, and convert many 3D mesh and solid file formats including STL (Stereo-Lithography), SKP (SketchUp), OBJ (Wavefront), FBX (Filmbox), STEP (Standardized Exchange), and others.

Autoshaper

Convert mesh to NURBS and import / export 3D file formats with NURBS solid shapes including STEP (Standardized Exchange of Product), 3DM (Rhino), IGES, and BREP, with automatic NURBS surface reconstruction.

STP STEP File Format (Standard for the Exchange of Product Model Data)

The STEP file format (also known as STP) is a widely recognized ISO standard for exchanging 3D data across different computer-aided design (CAD), computer-aided manufacturing (CAM), and computer-aided engineering (CAE) systems. Designed for seamless interoperability, STEP files enable accurate, reliable sharing of complex 3D models across industries like engineering, aerospace, and manufacturing.

Key Features and Benefits of STEP Files

Universal Interoperability: As an ISO-standardized format, STEP files eliminate vendor lock-in, supporting smooth 3D data exchange between major CAD software such as SolidWorks, NX, Creo, CATIA, AutoCAD, and more.
Broad Software Compatibility: Widely accepted across industries, STEP (.stp, .step) files ensure consistent workflows and simplify collaboration between different design teams and software platforms.
High Precision and Integrity: Unlike mesh-based formats like SKP, OBJ, or STL, STEP files maintain the exact geometry, dimensions, and topological details of 3D models without introducing mesh distortions or inaccuracies.
Assembly Color Support: STEP files retain color information at the assembly level, enhancing design visualization. However, they do not support transparency effects (alpha channel), so transparent objects are rendered opaque.

How to Convert and Optimize STEP Files

Large STEP files can be a challenge, especially when dealing with complex or highly detailed models. Our Autoconverter software provides an efficient solution, allowing you to optimize and convert STEP files easily. By using the faceted BREP (Boundary Representation) method, Autoconverter can significantly reduce file sizes - sometimes by up to 30% - without losing critical model fidelity.

Powered by the industry-leading Open Cascade technology stack, Autoconverter ensures full compatibility with the latest STEP standards and offers fast, high-quality STEP to STL, OBJ, SKP, or other 3D file format conversions. Start optimizing and converting your STEP files today with our powerful tools!