Free Online 123DX to FBX Converter

Use our free-to-use 123DX to FBX CAD to 3D model converter to effortlessly convert your 123DX files. Our converter can apply extrusion to your 123DX files, which can then be edited in most 3D editing applications. As our 123DX to FBX tool is able to batch convert your files, you can upload a maximum of 20 files at a time.

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 123DX file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted 123DX file before this time.

To begin, click the button above and select your 123DX CAD files. Once selected, your CAD files will be added to the conversion list. From here, you will be able to set any conversion properties, such as extrusion depth, by clicking the button. When you are ready, click the Convert button to convert your files.

How to Convert your 123DX to FBX Online?

Here are two simple steps to convert your 123DX to FBX using our fast and free 123DX converter tool.

Upload your 123DX file

Click the "Upload a 123DX File" button, then select a 123DX 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 123DX file to FBX?

First, click the "Upload..." button and select your 123DX file to upload. Your 123DX file will be uploaded to our servers. When the 123DX to FBX conversion has completed, you can download your FBX file right away.

How long does it take to convert my 123DX to FBX?

We aim to process all 123DX 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 123DX 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.

File format information for 123DX and FBX

Extension	123DX
Full Name	Autodesk 123D
Type	CAD
Mime Type	application/octet-stream
Format	Binary

The 123D Design application uses the 123DX file format, which is a Computer Aided Design (CAD) graphics format. Developed by Autodesk, 123D Design was intended as an easy-to-use CAD application aimed at entry-level and enthusiast designers.

123D Design has since been retired, with users moving to other CAD applications such as Fusion 360. The 123DX format is a ZIP container format containing various data files describing the properties of the various objects within the CAD file. Elements such as lines, curves, and 3D volumes such as cubes and cylinders are all stored within human-readable text files wrapped within a compressed ZIP file containing the 123DX file extension.

As mentioned, the 123D Design software has been superseded by other, more capable CAD software, meaning support for editing the file is limited. The original 123D design software can still be downloaded and contains numerous options to export data to standard formats, such as STEP and STL.

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.