To convert other file formats to the "3D Model Design File" file type, you need software like SketchUp or a similar tool.
About SKP files
A .SKP file is a 3D model document created by SketchUp, a highly popular CAD application used for architectural, interior design, and mechanical engineering workflows. Maintained by Trimble, these files store complex 3D geometry, materials, textures, components, and scene layers. You can learn more about its history on the SketchUp Wikipedia page.
The main disadvantage of the .SKP format is its proprietary nature and strict version locking. Newer versions of SketchUp files cannot be opened by older versions of the software, frequently causing workflow bottlenecks when collaborating with external clients. Furthermore, native .SKP files are heavy, require a dedicated viewer or an active software subscription to open locally, and are not natively supported by web browsers or most 3D slicing software for manufacturing.
To effectively use these 3D models elsewhere, you must convert them. For cross-platform 3D editing in Blender or Autodesk Maya, convert your file to OBJ or FBX. For 3D printing workflows, converting to STL is mandatory. If your goal is web-based AR/VR display, convert to GLTF or GLB. Drag and drop your file to analyze and convert it - free, online, and without installing software.
Use Convert.Guru to open and convert your SKP file.
If you want to convert SKP file to OBJ, DWG, STL, STEP, 3DS, FBX, DAE, MAX, BLEND, MA or MB, you can use SketchUp or similar software from the "3D Model Design Storage" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, 3DS, 3DM, OBJ, STEP, FBX or PLY files to SKP, try SketchUp or another comparable tool in the "3D Model Design Storage" category.
The SKP Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SKP converter.