Is it possible to directly convert .zip files to .mp4 format.
Directly converting Zipped Files to MPEG-4 Videos (.zip to .mp4 conversion) is, most likely, not possible. Both file types are of completely different nature.
Should the ZIP file, however, contain multimedia data (such as MP4), you can simply extract that particular video file (e.g. by decompressing the zipped file in Windows with the right-click method).
Should the extracted video file be in any other format than MP4, you can use any common video conversion tool capable of converting your file to MP4.
In a word, direct zip to mp4 conversion is not possible.
So don't expect any so-called zip to mp4 converter or zip to mp4 free online conversion tool available.
The database currently does not contain any zip software converter.