OBJ to STL Converter

Batch convert obj files to stl online. Change obj to stl on Windows, Mac, Iphone or Android in a couple of clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert OBJ files to STL online?

Step-by-step instructions for converting obj files to stl

Upload OBJ-file

Click "Choose File" button to select a obj file on your computer. OBJ file size can be up to 100 Mb.

Convert OBJ to STL

Click "Convert" button to start conversion.

Download your STL

When the conversion process is complete, you can download the STL file.

FAQ

  • ❓ How can I convert OBJ to STL?
    First you need to add file for conversion: drag and drop your OBJ file or click the "Choose File" button. Then click the "Convert" button. When OBJ to STL conversion is completed, you can download your STL file.
  • ⏱️ How long does it take to convert OBJ to STL?
    Mesh conversion is pretty fast. You can change OBJ to STL in a few seconds.
  • 🛡️ Is it safe to convert OBJ to STL on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including OBJ to STL) is absolutely safe.
  • 💻 Can I convert OBJ to STL on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our OBJ to STL converter works online and does not require software installation.

Information about OBJ and STL file formats

Name OBJ STL
Full name OBJ geometry format Stereolithography File Format
File extension .obj .stl
MIME type text/plain
Developed by Wavefront Technologies 3D Systems
Type of format
Description OBJ (or .obj) is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors. STL is a file format native to the stereolithography CAD software created by 3D Systems. Many other software packages support this file format. It is widely used for rapid prototyping, 3D printing, and computer-aided manufacturing. STL files describe only the surface geometry of a three-dimensional object without representing color, texture, or other common CAD model attributes. The STL format specifies both ASCII and binary representations. Binary files are more common since they are more compact.
Technical details The OBJ file format is a simple data format that represents 3D geometry alone — namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices. Vertices are stored in a counter-clockwise order by default, making explicit declaration of face normals unnecessary. OBJ coordinates have no units, but OBJ files can contain scale information in a human-readable comment line. An STL file describes a raw, unstructured triangulated surface by the unit normal and vertices (ordered by the right-hand rule) of the triangles using a three-dimensional Cartesian coordinate system. All STL coordinates were required to be positive numbers in the original specification, but this restriction is no longer enforced, and negative coordinates are commonly encountered in STL files today. As a result, STL files contain no scale information, and the units are arbitrary.
File conversion OBJ conversion STL conversion
Associated programs Wavefront 3D, CADRazor, Adobe Photoshop, LogiKal, UVMapper, LightWave 3D, Autodesk Maya, IMSI TurboCAD Deluxe, MeshLab, MAXON Cinema 4D, Smith Micro Poser, Autodesk AutoCAD. TurboCAD, GOM Inspect, STL Viewer, Geomagic Explorer, Parametric Technology Creo, Dassault Systemes CATIA, KeyCreator, MeshLab, SolidWorks, Pro/Engineer, CloudCompare, Blender, AutoCAD, 3D Studio Max, Autodesk Inventor, Mechanical Desktop
Wiki https://en.wikipedia.org/wiki/Wavefront_.obj_file https://en.wikipedia.org/wiki/STL_(file_format)
OBJ to STL conversion quality rating:
4.6 (590 votes)
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