For Windows users, there are quite a few tools to download videos from YouTube. But if you are a Mac user, the choices are very limited and a lot of us have to turn to online conversion websites. Recently, Mac YouTube tools have also become available. Just follow steps below to download your favorites.
Step 1. Launch The ProgramInstall and launch
Wondershare Free Youtube Downloader for Mac, you will see the interface below.

Note: If this is the first time that you launch the program, you will see a pop-up window asking you to input the password of your Mac admin account. This is very important for the Sniffer function.
Step 2: Download Online Videos Go to video website and open the page of the video you want to download. The program will detect the URL and automatically start downloading the video. From the source list, you can find the status of each file. See the figure below:
Note: If you want to find the downloaded files, you can click the Open button to go to the directory where the downloaded files are saved.
This Mac YouTube downloader is totally free, if you don't want to convert downloaded videos to your mobile players, you don't have to pay for it.
Additional Tips:Tip 1: FLV Video player
After the video download is completed, you could play the downloaded video files just by click PLAY button without other video players.
Tip 2: Add local FLV files
Also, if you want to play the FLV files on your computer, you could use the software as a FLV player.
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