TubeMate is a great Android app which enables you to download YouTube videos to your Android device. The problem is Google keep removing it from the Android Market, no doubt due to people downloading content they do not own to their Android devices.
With this neat little app you can download many
YouTube videos at once in different resolutions. It can extract audio from video files and convert them to MP3, in simple terms you can convert the videos to MP3.
The resolutions which you can download at are:

320×240
640×360
Read more at: http://www.ogbongeinfo.com/2013/08/how-to-download-youtube-videos-to-your.html

Videoder is better as it work well on lower Android devices.

luluosas: Videoder is better as it work well on lower Android devices.

Tubemate is awesome....

ibietela2:

Tubemate is awesome....

Yep
True that!

ibietela2:

Tubemate is awesome....

It can't work on my device.

Anyone knows how i can download youtube videos online in avi format?

luluosas:
It can't work on my device.

Why??

Check here for the compatible version of tubemate http://akinwemoye..com/2013/08/how-to-download-youtube-videos-on.html

Adetayo100: Anyone knows how i can download youtube videos online in avi format?

Just add ss in front of the video address to take u to a save link. e.g http://ssyoutubevideo

LATEST UPDATE: You can now convert Youtube to MP3, Youtube to MP4, other supported file formats and Download Youtube Videos for FREE using advanced online applications and tools reviewed on http://www.YoutubeToMP3App..com. Cheers!!!