4K Download Online has been discontinued. Similar sites and apps include yt-dlp, which is free and open source. Other options are youtube-dl, Youtube-DLG, Video DownloadHelper and 4k Video Downloader. There's no shortage of YouTube Downloaders like 4K Download Online, with more than 100 alternatives for Windows, Mac, Linux, Android and iPad.
TubeMaster++ is a powerful tool which can capture multimedia files you are watching or listening from your internet browser (FLV,MP3,MP4). Captured files can be saved directly on your computer or converted to other popular video or audio formats (AVI, MPEG, MP3, MP4, IPod, PSP ..
VDownloader is a software application that allows you to save videos from any major website to your hard drive. With a single click of the mouse, these videos can be stored in any video or audio file format.
Cyprus
EU
Airy is a YouTube video downloader, i.e. an application that allows you to save your favorite YouTube videos so you can watch them whenever you feel like - no matter whether you are connected to Internet or not and whether it is still available on the web site.
United States
Download and convert videos online from many websites including Youtube, Vimeo, Facebook, Dailymotion, Instagram, Twitter, Vine, and many more.
iWisoft Free Video Converter can fast convert videos between all popular formats like AVI, MPEG, WMV, DivX, XviD, MP4, H.264/AVC, AVCHD, FLV, MKV, RM, MOV, 3GP, and audio MP3, WMA, WAV, RA, M4A, AAC, AC3, OGG.
China
Free and open-source media downloader for YouTube and many other sites.
China
Free YouTube to Mp3 Wma Converter is designed to extract audio from YouTube video and saving them as various audio formats on your computer with some simple clicks - yes, from the website to your own music player, that's so easy!
China
Download music (mp3, AAC) from YouTube, fast easy and secure. You can play your downloaded songs with your favorite MP3-player, ipod, mobile phone and more. You can download several songs at the same time very fast.
Want Youtube is a video download service that supports more than 360 websites, mainly including: 5min, Break, Current, Dailymotion, Facebook, Google Video, ku6, Metacafe, Myspace, Photobucket, Sina, Spike, Tudou, Veoh, Vimeo, Yahoo Videos, Yam, Youku, Youtube (MP3, 3GP, FLV...
InsTube lets you download HD videos and music from over 1000 sites, such as YouTube, Facebook, Dailymotion, SoundCloud, etc. The Video Lock inside InsTube helps manage your videos.
