Sites and apps similar to YoutubeMP3.one include yt-dlp, which is free and open source. Other options are youtube-dl, Cobalt Tools, Youtube-DLG and Open Video Downloader (youtube-dl-gui). YouTube Downloaders like YoutubeMP3.one are a crowded field, with more than 100 alternatives for Windows, Mac, Linux, Android and self-hosting.
Open-source and self-hosted YouTube downloader built on Material Design. Supports multiple users, subscriptions, file management, quality select, audio-only downloads, sharing, and much much more!.
Offliberty lets you access any online content without a permanent Internet connection. Today many websites offer nice content but most are difficult to browse offline. If you have limited access to the Internet you can use Offliberty to browse any content later - being offline.
Yourtube adds a fully integrated downloader to the YouTube app of your jailbroken iPhone or iPod Touch, so you can keep those great videos that you love to watch.
yt-dlp-gui is a front-end of yt-dlp or youtube-dl for downloading videos from YouTube and other sites. It use FFmpeg for video conversion.
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.
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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.
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MacYTDL is a macOS GUI/front-end for youtube-dl, the cross-platform video downloader. It runs on any Apple Mac with OS X 10.10 or later.
Download and convert videos online from many websites including Youtube, Vimeo, Facebook, Dailymotion, Instagram, Twitter, Vine, and many more.
An online free YouTube converter which allows you to convert videos and audios to MP4, MP3, M4A from YouTube, Facebook, Instagram, MixCloud, Dailymotion, VEVO, bilibili, niconico, etc. Supports HD MP4, 720p, 1080p video and 320kbps MP3.
Free and open-source media downloader for YouTube and many other sites.
xVideoServiceThief (a.k.a xVST) is a tool for downloading your favourite video clips from a lot of video websites (currently supports 93 websites and increasing!).
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