How to Convert Multiple STL Files to X3D?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting STL files in under two minutes.
2. Load your STL files
Start reaConverter and add your .stl files. The software processes everything locally, so your files never leave your computer.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select X3D as output format
Select X3D from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start STL to X3D conversion
Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your X3D output.









