4K Video Downloader
This is the new, enhanced version of the 4K Video Downloader you love.
4K Video Downloader+ is a cross-platform application that lets you easily save audio and videos from YouTube, Dailymotion, Bilibili, Facebook, Twitch, Vimeo, and other websites in mere seconds.
Enjoy your favorite content anytime; even with no Internet connection. 4K Video Downloader+ works faster than any other free video downloader and saves audio and videos in flawless quality.
Download YouTube single videos, playlists, and entire channels with a single click.
Enjoy 360-degree videos download.
Search and download content right from the in-app browser.
Save audio and videos from dozens of websites.
Extract subtitles from YouTube videos.
And a lot more with 4K Video Downloader+!
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Setplex
Seplex is an OTT solutions provider, serving global operators with simple, powerful and scalable OTT solutions—from content preparation, management and monetization to video delivery, multi-screen apps and real-time analytics.
We offer a unified OTT platform that includes middleware, transcoders, CDNs, DRM, multi-screen apps, STBs, and analytics, designed to support operators worldwide. Our solutions earned the PRODU Award for OTT Development of the Year in 2025, thanks to Setplex’s role in powering Copa América 2024 streaming for Venezuelan broadcaster Televen, scoring over 43 million impressions and 1.3 million app installs across mobile, web, & smart TV platforms.
With the advantage of being operators ourselves, serving millions of subscribers, we possess deep insights into the daily challenges faced by operators. This expertise fuels our R&D efforts, driving the development of our platform, paving a smoother path for operators, and enhancing their operational efficiency.
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FFmpeg
A complete, cross-platform solution to record, convert and stream audio and video. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, runs, and passes our testing infrastructure FATE across Linux, Mac OS X, Microsoft Windows, the BSDs, Solaris, etc. under a wide variety of build environments, machine architectures, and configurations. The FFmpeg project tries to provide the best technically possible solution for developers of applications and end users alike. To achieve this we combine the best free software options available. We slightly favor our own code to keep the dependencies on other libs low and to maximize code sharing between parts of FFmpeg.
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