How to download 4K videos from YouTube

4K resolution (UHD) has more than eight million pixels (3840 x 2160). You need to have a pretty fast and stable internet connection to watch 4K videos online. If you don’t have such an internet connection, there is no need to worry because you can definitely rely on the Addoncrop YouTube Downloader to download and watch 4K videos offline.

Introduction of YouTube 4K Downloader

Addoncrop YouTube Video Downloader is a one-stop solution for all your YouTube needs. It offers completely free HD video downloading from YouTube. So, there is no need to purchase any licensed software. 

All You need to do is install an additional software named Flixmate. It will be integrated with Extension to get full support of HD videos downloads or convert one format to another. Once the Flixmate is installed, you will be able to download any desired quality – 8k / 4k / 1440p / 1080p / 720p / 480p and more. Flixmate is the most convenient and easy-to-use software for downloading 4K YouTube videos.

Why do I need the Flixmate to download HD videos with sound ?

YouTube no longer offers HD videos with sound for direct download. Currently, YouTube only supports them via DASH, which means the video is split into two files - video and audio - and must be merged to make a watchable video.


With Extension, when you download a YouTube video in HD format, it comes without sound. It requires a special tool called "FFmpeg" to merge video and audio. That's what the Flixmate does. It uses "FFmpeg" and follows the Extension commands to merge the video and audio in the background and deliver you an entirely watchable HD file.

Is the Flixmate app is compulsory for the Addoncrop YouTube video downloader?

Flixmate is a non-essential application. It's only required if you want to download HD, Ultra HD (UHD) videos. Otherwise, with a standalone addoncrop youtube downloader, you can download videos that YouTube provides by default, and In addition, you can also convert youtube videos to mp3.

How to watch downloaded videos ?

After downloading videos, you can play them using some of these free Video players (or similar to these):

  • VLC - Windows/Mac/Linux - very popular
  • Movies & TV - pre-installed on Windows 10
  • Windows Media Player Windows Media Player 12 - Windows
  • iTunes - Windows/Mac

Can I use the Flixmate app on any OS (operating system)?

Flixmate only supports Windows 7/8/10; Mac and Linux support will be added soon.

How does it work?

Installing the Flixmate is an effortless process. First of all, visit the official Flixmate website. Click on the “Download” button to get your software downloaded offline. As you run the software, you will find an installation wizard working on finishing the installation process. 

Once the installation process is completed, Flixmate would be functioning in the background, and it would auto-connect with the Addoncrop YouTube Video Downloader extension. 

As you open any YouTube video, you will be able to see a 4K Download button under every YouTube video. Click on the Flixmate “Download” button present below the video

Ultra HD 4K download


As you click on Flixmate’s Download button, you will see a list of all the available video resolutions.


Select your desired video quality the downloading process will begin immediately

What else do you get?

Addoncrop YouTube Video Downloader is not only a video downloader, but it’s an extension filled with plenty of features. You get to download 8K Ultra HD, 2K Quad HD, 1080p Full HD, 720p HD, and even 3D video formats from YouTube. The extension also allows you to convert your favorite YouTube video into different formats. Extracting audio from a video has been made pretty simple with this extension.

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Install Flixmate with your Addoncrop YouTube Video Downloader and download any video from YouTube in 4K as well as HD without size and length limits
Please note: Once the installation process is completed, Flixmate will be functioning in the background, and it will auto-connect with the YouTube Video Downloader extension.
Ultra HD Download in Youtube video Downloader
YouTube Video Downloader

Download YouTube videos in different video qualities; 4K, 1080p, 720p, 480p and 360p. Supports all formats, including mp4 and mp3 without size and length limits

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