🔃 FBX Version Converter: Downgrade or Upgrade FBX Files

FBX files come in multiple incompatible versions - a newer FBX 2020 file will fail to open or import incorrectly in software that only supports FBX 2014 or earlier. If you're getting "unsupported FBX version" errors in Blender, Maya, 3ds Max, Unity, or Unreal Engine, converting the FBX file to a compatible version is the fix.

This guide shows how to convert FBX file versions - upgrade or downgrade - in six steps using Autoconverter. No Autodesk FBX Converter (discontinued), no Maya, no 3ds Max required.

How to Convert FBX Version: Step-by-Step

1. 📥 Download and Install Autoconverter

   

   Download Autoconverter and install it on Windows. It reads and writes all FBX versions natively using the Autodesk FBX SDK - no Maya, 3ds Max, or Autodesk FBX Converter installation is required.

2. 🚀 Launch Autoconverter

   

   Launch it from the Windows Start menu. The interface includes a 3D viewport and the standard File menu. You will use the Convert File Version… function rather than the standard Open/Save workflow, which preserves all FBX data (animation, bones, materials, cameras, lights) without going through a geometry conversion step.

3. 🔄 Open the Convert File Version Dialog

   

   Go to File > Convert File Version…. This function converts the FBX file's version metadata and data format without changing the geometry or scene content - it is the correct approach for version conversion rather than a full re-export.

4. 📂 Select Source and Output FBX Files

   

   Browse to the FBX file you want to convert. Specify a new output filename - saving to a new name preserves the original file, which is the recommended practice, especially when downgrading (some features may not survive conversion to older versions).

5. 🎛️ Select the Target FBX Version

   

   In the FBX Save Parameters dialog, select the target FBX version from the dropdown. For maximum compatibility with most tools and game engines, FBX 2014 is the safest choice - it is supported by every current version of Blender, Unity, Unreal Engine, Maya, 3ds Max, Cinema 4D, and Houdini. Use newer versions only when your entire pipeline supports them.

6. 💾 Save the Converted FBX File

   

   Click OK to run the conversion. Autoconverter writes the FBX (Filmbox) file in the specified version format. Open it in your target application to verify it loads correctly before discarding the original

Frequently Asked Questions

1. Why does Autodesk FBX Converter no longer work?

   Autodesk discontinued the standalone FBX Converter tool and it no longer runs on modern Windows versions. Autoconverter uses the current Autodesk FBX SDK and runs on all modern Windows versions, providing the same version conversion capability without requiring any Autodesk product installation.

2. Will animation, bones, and skinning be preserved during FBX version conversion?

   Yes, when using Convert File Version…. This function converts the file's version metadata while preserving all FBX scene data including animation curves, skeletal rigs, blend shapes, cameras, and lights. It is different from a full geometry re-export, which would process only mesh data.

3. What FBX version does Blender support?

   Blender's FBX importer handles most FBX versions but produces the most reliable results with FBX 2014. If you're experiencing import issues with a newer FBX file in Blender, downgrade to FBX 2014 first.

4. Which FBX Version Should You Target?

   The right target version depends on where the file needs to open:

   • FBX 2014 - the universal safe choice; supported everywhere. If you're not sure, use this.
   • FBX 2019 or 2020 - use only when you know the recipient's tools support it (current Maya, 3ds Max, or Houdini pipelines)
   • FBX 2013 or earlier - use only for legacy tools or CAM/simulation systems that specifically require older FBX versions

5. Is there a free trial?

   Yes. The free evaluation version of Autoconverter supports up to 10 file conversions. The full licensed version provides unlimited conversions and batch processing.

Summary

FBX version conflicts cause import errors across the full range of DCC tools and game engines. Autoconverter converts FBX files between versions 2011 and 2020 in six steps, preserving all scene data including animation and skeletal rigs. FBX 2014 is the safest target for maximum cross-application compatibility. No Autodesk tools, no Maya, and no discontinued Autodesk FBX Converter required.

👉 Ready to convert? Download Autoconverter and try it free for up to 10 conversions.

• < Prev
• Next >