Sothink free YouTube Downloader is a totally free and easy-to-use YouTube (HD) video downloader and converter. One step to download and convert YouTube videos of different resolution like 240p/360p/720p and as well as YouTube HD Video in 720P or even higher. Automatically paste the URL of YouTube videos you copied and start video downloading task quickly. Convert and save YouTube videos into different formats, including AVI (Divx/XviD/ H.264/AVC) Video, MPEG4 (mp4) Video and Matroska (mkv) Video. Provide "Best Available" option to automatically match videos with the best quality. All downloaded YouTube videos can be played instantly with built-in Free FLV Player or other media players installed in computer by double-clicking action. The converted YouTube videos also can be played smoothly on popular iPhone, iPod, iPad, PSP, Xbox 360, Android mobiles, smartphones, Tablet PC and all other popular portables. More amazing features list below:Quick to Download and Convert: 1. 100% free to download and convert YouTube videos. 2. Allow to download HD videos from YouTube site 3. Auto-paste URL of YouTube video page you have just copied. 4. Convert YouTube videos into your desired formats, which can be played smoothly on popular iPhone, iPod, iPad, PSP, Xbox 360, Android mobiles, smartphones, Tablet PC and any other media players installed on PC and laptop. Save as the Best and Video Playback: 1. One-click to save YouTube videos to other formats like AVI, MP4 and MKV. Choose the best quality, format and compatible device on your demand. 2. Download and save multiple YouTube videos at once. 3. All downloaded videos can be played instantly with built-in Free FLV Player or other media players installed in computer. Easy-to-Use: 1. User-friendly interface. 2. Fast speed to complete video downloading process. 3. Easy to control video downloading tasks with Start, Pause, Play, Delete and Rename command. 4. Notify users when video downloads finished.