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Image to STL

Convert Your 3D Mesh/Model STL Files to OBJ

Our free and fast tool will convert most 3D mesh or STL (Standard Triangle Language) model files to a standard OBJ (Wavefront) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing.

To convert your STL file click the Upload button above and select the file to convert. Once selected, the file will be converted to a OBJ file and will ready for download shortly afterwards. For more information about the STL to OBJ conversion process see the conversion information section below for more information.

How to Convert your STL to OBJ Online?

Here are 2 simple steps to convert your STL to OBJ.

Upload a STL

Upload a STL

Click the "Upload a STL File" button and select a STL to upload. The maximum file size is 100MB.

Download your OBJ

Download your OBJ

Click the download link once completed to receive your OBJ file.

FAQ

What STL formats can I convert from?

You can convert from both text and binary STL files. If your STL file contains color information we will bring this over.

How can I convert my STL file to OBJ?

First click the "Upload..." button, select your STL file to upload. Select any configuration options. When the STL to OBJ conversion has completed, you can download your OBJ file straight away.

How long does it take to convert my STL to OBJ?

We aim to process all STL to OBJ conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the STL to OBJ conversion?

We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features being added every week.

Is it safe to convert my STL to OBJ on ImageToStl.com?

Yes, of course! We do not store the STL file you submit to us. The resulting OBJ file, once created is deleted 1 hour after upload and the download link will expire after this time.

Can I convert STL to OBJ on Windows, Linux, Android, iOS or Mac OS?

Yes! Our STL to OBJ tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

File format information for STL to OBJ

Extension: STL

Full Name: Standard Triangle Language

Type: 3D Model

Mime Type: application/vnd.ms-pki.stl

Format: Text & Binary

Extension: OBJ

Full Name: Wavefront

Type: 3D Model

Mime Type: text/plain

Format: Text

Description

The STL file format has its roots in the 1980's and is the native file format for 3D Systems stereolithography CAD software. The format defines a triangulated mesh with vertices and faces and is a popular format for sharing 3D printable model files.

There were several formats that attempted to extend the STL format namely SolidView and VisCAM whose formats included limited 15-bit color information for each mesh face which is often ignored by most modern 3D software. The STL format can be either Text or Binary, our tools will support both formats.

Description

The OBJ file format originally created by Wavefront Technologies and later adopted by many other 3D software vendors is a simple text-based file format for describing 3D model/geometry. This data can include Vertices, Faces, Normals, Texture Coordinates and references to external Texture files.

As the format is text-based it is relatively straight-forward to parse by 3D modelling applications. A downside of the text-based format is the files can be rather large compared to similar binary formats such as STL and compressed files such as 3MF.

STL Notes

Standard STL files do not contain material or color information so this cannot be imported. There are however two formats (VisCAM and SolidView) that attempted to add color information to the STL file format. If our tool detects this additional color information it will attempt to import this information.

Supported Features

  • Mesh geometry
  • Face colors via the VisCAM and SolidView formats
  • Binary and Text versions supported

OBJ Notes

Our tool does not currently support saving material or color information for OBJ files.

Supported Features

  • Mesh geometry

Unsupported Features

  • Textures
  • Material colors