Free Online STEP to FBX Converter

You can use our STEP to FBX conversion tool to quickly and easily convert your 3D model files for free. You may upload up to 20 files at one time, and our batch STEP to FBX converter will process each 3D model and present you with a download link for each file once completed.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

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

Our 3D model STEP to FBX tool will load your STEP file and, where supported, attempt to extract all the relevant 3D features, such as geometry, textures, and animations. To access the 3D conversion configuration options, click the button when you have selected your files. The current options support the ability to voxelize your 3D model and more.

How to Convert your STEP to FBX Online?

Here are two simple steps to convert your STEP to FBX using our fast and free STEP converter tool.

Upload your STEP file

Click the "Upload a STEP File" button, then select a STEP to upload. The maximum file size is 100MB.

Download your FBX

Click the download link to receive your FBX file.

Frequently Asked Questions

How can I convert my STEP file to FBX?

First, click the "Upload..." button and select your STEP file to upload. Your STEP file will be uploaded to our servers. When the STEP to FBX conversion has completed, you can download your FBX file right away.

How long does it take to convert my STEP to FBX?

We aim to process all STEP to FBX conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the STEP to FBX conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

How does converting STEP to FBX work?

In order to successfully convert an STEP formatted file to the FBX format, our converter tools will perform several initial checks to ensure the file provided is indeed an STEP file. There are many files out there where the file type extension does not match the data contained within the file. Along with these file type checks, our tools will do additional checks to ensure the file is correctly formatted to match the provided file type. There are many tools out there that do not always create STEP files to the exact specification.

Take your STEP file

The STEP file format is a text-based format, meaning its contents are human-readable, making STEP files straightforward to edit in simple text editors. Within this text-based format are the core elements that make up the 3D model, including points, lines, edges, faces, and more. To ensure efficient conversions, our tool will check all data that is contained within the STEP file and remove any information that is duplicated. STEP files are notoriously slow to process, even on high-end computer systems, which is why our STEP to FBX converters have been hand-optimized for speed making our STEP converters the fastest available.

Convert the data from STEP to FBX

Now that the data from the STEP file has been processed, our tool can apply any conversion specified options, such as enabling Voxel mode, and with these applied, prepare the data to be converted to the final FBX file format. Part of this process ensures checking the capabilities of the FBX format and removing any data that cannot be represented.

Save to the FBX format

At this point, the STEP to FBX conversion tool will have the 3D model in a state that is ready to be transferred to the FBX format. Our tool creates the FBX file, ensuring all the model data is present and is formatted to match the FBX file specification to ensure the file opens in compatible FBX file editors.

File format information for STEP and FBX

Extension	STEP
Full Name	STEP-File
Type	3D Model
Mime Type	application/octet-stream
Format	Text
Opens With	CAD Assistant

STEP files are a 3D file format used to store complex 3D object definitions in a standard format to facilitate data transfer between compatible 3D modelling and CAD (Computer Aided Design) applications. In addition to storing 3D object data, the STEP format can store additional information such as materials, tolerances, and other relevant data.

The STEP format was first released in the early 1990's, has become a standard for 3D object storage, and is used in automotive, electronics, and other industries. STEP files can be opened in most modern CAD applications and can be imported into many 3D modelling applications too.

The file content is ASCII text-based and conforms to the ISO-10303-21 standard. The 3D object contained within the STEP file is described using a combination of points, lines, and edges. Due to the format being ASCII text, complex objects can lead to large file sizes. In addition to large file sizes, some complex STEP files can take a long time to open within editing applications, even on a high-spec, modern computer.

STEP Converter Capabilities

When converting 3D model or mesh files using our STEP converter, we will attempt to convert colour materials into a suitable format for use in the converted file.

Extension	FBX
Full Name	Autodesk Filmbox
Type	3D Model
Mime Type	application/octet-stream
Format	Text
Opens With	Blender, MeshLab

FBX files are an open 3D file format developed by Autodesk for use with their Maya and 3Ds Max applications. An FBX file may contain any number of 3D objects, their associated geometry, materials, textures, animations, and more, all within a single convenient package.

The content of an FBX file is a mix of binary and ASCII text, producing a format that is both human-readable and compact. Due to their compact size, ease of use, and widespread support, FBX files are a popular choice for creating 3D animations and are also a staple in the videogame development scene.

The development of the FBX format continues to this day, with new features being included in each release. Along with being used within Autodesk's own editing solutions, FBX files can also be opened and edited in other popular 3D modelling applications, such as Blender.

FBX Converter Capabilities

When converting your STEP to FBX, our tool will attempt to accurately convert any colour or material information.

Information for converting from STEP to FBX

Your STEP file will be converted to a FBX file using our unified 3D model and mesh conversion tool. Our STEP 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals, and relevant material information. As both STEP and FBX support colour material information, our tool will also attempt to convert the colour information.