Click the "Select File" button above, and choose your 123DX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert 123DX to another file type
To convert 123DX models to another format, you need Autodesk Fusion 360 or other 3D software.
Convert a file to 123DX
To convert other file formats to the "Discontinued CAD Model File" file type, you need software like Autodesk Fusion 360 or a similar tool.
About 123DX files
The .123dx file is a 3D model design file created by Autodesk 123D Design, a now-discontinued consumer 3D modeling application. While originally opened using 123D Design, it can now be imported into Autodesk Fusion 360. Users need to convert this file because 123D Design was retired in 2017. The format is obsolete, proprietary, and unsupported by modern web browsers or standard 3D viewers. You cannot directly 3D print it or import it into generic CAD software without a workaround. Relying on an old, unsupported installer for 123D Design poses security and compatibility risks. The best conversion targets are STL for 3D printing or OBJ for general 3D rendering. Converting to these formats loses parametric editing history, leaving only the final 3D mesh. This file format is difficult to open or convert because it is actually a closed, proprietary data schema wrapped inside a standard ZIP archive. Because the format is undocumented, standard online converters fail to process it. Often, only the original software can properly read or export the geometric data. If our analysis detects a supported underlying format, viewing or conversion may still be possible.
Convert.Guru analyzes your 123DX file, detects the exact format, and lets you read the text inside.
If you want to convert 123DX file to STL, DWG, DXF, DGN, RVT, RFA, SKP, 3DM, STEP, IGES, SAT or X_T, you can use Autodesk Fusion 360 or similar software from the "3D Model Design Storage" category. In the File menu, look for Save As… or Export….
To convert SLDASM, DGN, PRT, IAM, X_B, CATPRODUCT, SLDPRT, RVT, ASM, DWG, CATPART or DXF files to 123DX, try Autodesk Fusion 360 or another comparable tool in the "3D Model Design Storage" category.
The 123DX Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our 123DX converter.