A 3ds to dae conversion basically represents export of 3ds max graphics (.3ds) to Collada 3D digital asset exchange format (.dae). Your best option to achieve this would be any of the 3D modeling programs nowadays support both 3DS and DAE formats, but you can also find dedicated converters that will allow you to convert 3ds to dae.
Open 3DS file Open DAE fileA CAD 3D geometry translation software
A converter for 3D formats
An online CAD conversion service
A web-based freemium 3D computer graphics software
An FBX convertor utility from Autodesk
A free online 3D model conversion service
A commercial online CAD converter
A 3D CAD translation software