DORCHESTER3D

Free Online OBJ to STEP Converter

Here is our free to use OBJ to STEP 3D model converter tool that will take your OBJ file and convert it to the STEP format ready for loading into your favourite 3D modeling package. If you have any external texture files, these can be selected along with your OBJ file and our tool will automatically handle converting these. Our 3D model converter supports batch processing of your files and can convert up to 20 OBJ files at one time.

Drag and drop your files here to upload or click the button above.
A maximum of 20 files can be converted at once.

Please note: Your OBJ file file, when uploaded to our server, will be deleted 15 minutes after upload. Please download your converted OBJ file file before this time.

The OBJ to STEP model conversion tool will analyse your OBJ file and convert its 3D mesh data including vertices, surfaces and where applicable vector normals and texture coordinates to the STEP format whilst maintaining the structural accuracy of your original OBJ 3D model file.

File information for OBJ and STEP

Full NameWavefront
ExtensionOBJ
Type3D Model
Mime Typetext/plain
FormatText

An OBJ file is a text-based file format used for the storage of 3D model data. The format was developed in the 1980s by Wavefront Technologies as a means to store the geometric mesh data associated with a 3D model. It has garnered widespread support in the following years, and you will find options to load from and save to the OBJ format in most modern 3D modeling applications.

As OBJ files are essentially text files, they can grow quite large when working with large and detailed 3D models.

Mesh Geometry

Within a 3D OBJ file are lists of vertices, mesh faces, face normals, texture coordinates, and more. The vertices, normals, and texture coordinates are stored in a continuous list and are indexed referenced within a separate list of mesh faces, ensuring optimal use of space within the file. A mesh face may contain three or more points, each of which can use a unique vector normal and texture coordinate.

OBJ Converter Capabilities

As materials containing texture and color information are both supported by the OBJ format, our tool will do its best to include these materials, including any texture files, in the converted file.

Full NameSTEP-File
ExtensionSTEP
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary

The STEP file format, also known as ISO 10303-21, is a 3D file format used within the area of computer-aided design (CAD) as a way to exchange data between different applications. The STEP format is essentially a plain text file containing commands used to describe the 3D object.

Due to the standardized nature of the format, there is support for importing STEP files into many CAD applications. STEP files can, however, become quite large, and some complex files can take a long time to import into a 3D project.

Mesh Geometry

The STEP format is not a mesh-based format; converting a STEP file to a mesh format is possible via most CAD applications via a tessellate function.

STEP Converter Capabilities

As materials containing color information is supported by the OBJ and STEP formats, our tool will do its best to include this in the converted STEP file.

How to Convert your OBJ to STEP?

Here are two steps to convert your OBJ to STEP using our free OBJ converter tool.

Upload your OBJ file

Click the "Select File" button, and then select the OBJ file to upload. The maximum file size is 100MB.

Download your STEP

Click the download link to receive your STEP file.

Frequently Asked Questions

How do I convert my OBJ to STEP?

First, click the "Select File" button and choose your OBJ file. We will upload and convert your OBJ file. Once the conversion from OBJ to STEP completes, use the provided link to download your STEP file.

How long does it take to convert my OBJ file to STEP?

We aim to process all OBJ to STEP file conversions as soon as possible; this should take around 5 seconds; however, this may be longer for larger files.

Is the OBJ format suitable for 3D printing?

No. Most 3D printing slicer software will not support the OBJ format. It is recommended to convert your OBJ file to the STL format if you wish to 3D print it.

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