How to convert 3GP to MP4 video files on Mac?

3GP is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used on 3G mobile phones but can also be played on some 2G and 4G phones. To watch 3GP files on MP4 player, you can try out iMacsoft MP4 Converter for Mac? It can not only convert 3GP files to general MP4 format , but also convert 3GP to MP4 format particularly for iPad, iPod, iPhone, PSP, PS3, and Apple TV.
1: Load 3GP video
Directly click "Add" button or choose "Add..." option in the top "File" menu, you will see an "Open" dialog window pops up, and select 3GP video files from your Mac HD. When it is done, press "Open" button to load 3GP video files.

2: Select MP4 format
In the left "General" panel, you will see the "Profile" option, click it and select "MP4- MPEG-4 Video (*.mp4)" item for output MP4 video files. The software allows you to set different output formats according to different files.

3: Adjust some parameters
1)After selecting certain output format, you can choose "General" tab on the right top which will show its general standard. You may set "Video Quality", "Audio Quality", "Output filename" by clicking "General" button.
2)After that, you can also choose "Advance" tab on the right column which will show its advanced standard. You may set "Start Time", "Video Size", "Bit Rate" by clicking certain settings.

4: Set the saving path and output MP4 videos
Clicking the "Browse..." button and select the output destination for saving in the pop-up window and then select and check 3GP videos in the file list you want to convert and press "Convert" button to start 3GP to MP4 video files converting process. And you will see the convert process exactly in the progress "Status" bar.

Tips: How to trim video segment?
Select one video in the file list, click "Trim" button in the toolbar to open "Trim" window. You can clip the original video into several parts, then convert and output them separately or as a whole one. Set start point and end point, you get the segment you want to convert and output.