How to convert Youtube video FLV to 3gp on Mac Most Youtube video fans wish to watch Youtube videos on their 3G-phones anywhere and anytime. Everyone knows 3G-phones generally support 3gp videos not FLV files, while Youtube video format is .flv format. So there is no way to play the Youtube videos on mobile phones strightforward. But the situation is different, if the Youtube videos are converted to video format .3gp. The Mac FLV to 3gp converter can convert Youtube videos FLV to 3gp, MP4,avi,mkv,Divx files. And it is able to extract audios from Youtube videos.flv saved as format mp3,wav,ac3,wma,etc. With the FLV to 3gp mac Converter, you can customize the Youtube videos by trimming,cropping and tuning brightness,constrast and saturation. Besides, you can convert as many Youtube videos.flv as you wish at one time dues to the batch mode support. Additionally, the FLV to 3gp converter for mac can join several video files into one single video. Step by Step guide to show you how to convert FLV to 3gp on Mac. Step1. Load Youtube videos.flv to the converter Hit the "Add file" button and then browse the video files you wish to convert in the opened window. The FLV converter supports batch conversion, so you can load as many files as you like at one time. Step2. Set the output format and path In the drop-down menu next to the "Profile" field, set "**.3gp" as the output format . And select the "Apply to All" to convert all Youtube videos .flv to 3gp files----no need to set output format one by one. After clicking the "Browse" button, select a file folder to store the converted videos.And you can check the converted video by hitting the "Open" button. Step3.Advanced setting for the videos-----Effect Setting Click the "Effect" button on the top. Customize the Youtube videos by dragging the sliders leftwards or rightwards to tune "Brightness","Constrast"and "Saturation". Step4. Convert the Youtube videos.flv Click the "Convert" to start the conversion . The conversion process is visible on the process bar. Wait till the conversion is finished, the output videos will be playable on mobile phones.