The desktop version of draw.io is a standalone application which does not send any data outside of your device.

While .vsd, .vdx and .vss import is not supported in draw.io, you can convert to modern .vsdx formats first, and then to draw.io via our free web application at app.diagrams.net

Convert to a .vsdx diagram: Open the diagram file in your normal Microsoft editor, version 2013 or later, and save it as a .vsdx file. Create a new draw.io diagram, then drag and drop the .vsdx file into the diagram editor.

Convert a .vsdx diagram file to .drawio

1. Go to our online editor
2. Drag and drop the .vsdx file onto the drawing canvas, and draw.io will automatically import it.
3. Select File > Save from the menu, change the filename if necessary, then select Device as the target.
4. Open the .drawio diagram file as normal in your draw.io Desktop app.