Using a desktop software is the most effective way to convert 3GP videos to MP4, especially, you need to convert a great number of 3GP files. As a marvelous converting software, Joyoshare Video Converter can save your time, due to it allows you to add and convert files in batch at a time.
You can use this video converter to convert any files to any formats, such as DV, WebM, MOV, MP4, AVI, MPEG, MKV, FLV, AAC, MP3, WAV, etc. It is convenient for you to watch the converted videos on any current devices like iPhone, iPad mini, Galaxy phone, tablet, LG TV, and so on. The most important feature is that you can use this tool to convert 3GP to MP4 at 60X conversion speed without quality loss.
It is also a video editor. You can use it to trim video, crop area size, rotate video, adjust contrast, add video effects and frame, and more. If it is necessary, it can be a DVD ripper to help you rip DVD into 150+ formats.
Convert any video to MP4 with high speed and original quality
Support most formats and devices
Enable to merge all files into one
Can change codec, resolution, bit rate, frame rate