Can I convert .m3u8 files to .mp4 format.
Converting UTF-8 M3U Playlists directly to MPEG-4 Videos (.m3u8 to .mp4 conversion) is not possible, since M3U8 files are neither audio nor video files.
If you want to convert media files, referenced by your M3U8 playlist, to other formats, you must first locate/download those files. You can then easily convert those files using most available media editing programs or (online) conversion tools.
In a word, direct m3u8 to mp4 conversion is not possible.
So don't expect any so-called m3u8 to mp4 converter or m3u8 to mp4 free online conversion tool available.
A music library management program
A digital media player and library