YouTube Downloader (UDL Helper)

UDL Helper is a powerful YouTube audio and video downloader. In most cases, a file can be downloaded in ONE click, in the rest (*) - you need to follow a link to our website unidownloader.com and use UDL Client software.

Downloading video:
- with normal and increased framerate (60 fps);
- in MP4, WEBM formats;
- in resolutions: 360p, 720p [HD], 1080p [Full HD], 1440p [Ultra HD] 2K, 2160p [Ultra HD] 4K, 4320p [Ultra HD] 8K.

Downloading audio:
- with the highest possible bitrate;
- in MP3 and MP4 formats.

Important: a list of available download options depends on characteristics of the original video! A video originally posted on YouTube in low quality cannot be downloaded in Full HD / Ultra HD.

Other browser extension features:
- downloaded files have readable (human-friendly) names;
- an ability to get (copy to the clipboard) a direct link to the video;
- stylish design with support of YouTube light and dark themes;
- ability to choose a button style: modern interface appears on mouse over and classic (interface appears on click);
- "embedded" videos loading support, ie. YouTube videos hosted on third-party sites;
- sending a download link to a mobile device using a QR code;
- an ability to save frames from a video, i.e. take screenshots of the video;
- thoughtful help section with answers to frequently asked questions;
- full localization for russian and english speakers;
- really useful settings;

(*) For some format-resolution combinations, YouTube stores audio and video streams separately, therefore, to download video with sound, they must be “glued” (muxing). For small files (up to 200 MB), this resource-intensive operation is done by extension “on the fly” (right in the browser). For larger files, a user is redirected to our site with UDL Client software to avoid “freezing” in the browser. MP3 file format also isn't supported by YouTube and needs to be converted with a third-party desktop client.