DivX Converter is a free video converter program that can convert videos to 4K resolution, which is a very high video resolution suitable for ultra high definitions screens.

Input Formats: 264, 265, 3G2, 2GP, ASF, AVC, AVI, AVS, DIVX, F4V, H264, H265, HEVC, M4V, MKV, MOV, MP4, RM, RMVB, and WMV

Output Formats: AVI, DIVX, H264, HEVC, MKV, and MP4

MPEG2 formats such as MPG, SVCD, TS, and VOB will also work with DivX Converter, but only for the first 15 days of the install.

To use DivX Converter to create videos up to 4K, you must select the option called Enable DivX HEVC Plug-in during setup, which isn't chosen by default.