Normally it takes around 1 second to extract the downloading url for videos like Youtube, for some videos it make take longer, but no more than 5 seconds. If the extracting process takes more than 5 seconds, you better check the settings of your browser, sometimes it is due to the extension like "uBlock Origin". The speed will be greatly enhanced after disabling such extensions. Otherwise, just clear the cookies of the browser, the problem will be solved most of the times.
There are several methods for downloading YouTube videos. The instructions above discuss two popular ways to complete the task, but other options exist. There are numerous software suites available to download these videos. If you prefer this method, you can easily find choices by searching the internet for “YouTube downloading software.” The directions you find here discuss the use of websites that are specifically created to download YouTube videos.
If you want to download as videos itself, you can use other free tools like Free Youtube Download to download all videos with a single click. Please be careful while installing this tool as it optionally installs a browser toolbar and modifies search preferences. So please make sure you read and uncheck the optional checkboxes while installing to avoid surprises in your browser. 
If you’re looking to download a whole YouTube channel at one time, this is definitely one way that you can do it. WinX YouTube Downloader can download over 1000 URLs. Even more, it has support for different YouTube playlists and channels and even gives you the ability to record your own live videos, so this is one platform that can definitely achieve a whole lot more than you might have thought. On top of that, it doesn’t give you any kind of ads (because who wants to watch those?) and it lets you download from just about any kind of platform and into just about any kind of file.
The information given by Robert Morse in these videos are strictly for educational purposes only. They do not involve the diagnosing, treatment or prescribing of remedies for the treatment of diseases. Recommendations made in these recordings are not considered consultations or recommended individual protocols. Individual consultations and protocols through Dr. Morse are given by appointment only via contact through his clinic.
DistillVideo is the best free online video & music downloading platform where you can download any video and audio from YouTube, Facebook, Instagram, Twitter, Dailymotion, Vimeo and 5000 more websites on your desktop or mobile device very fast without any restriction. Supporting full formats including MP4, WEBM, AVI, FLV, MP3, M4A, 8K, 6K, 4K, 2K, 1080P, 720P...
When downloading, the program does try to hide some things. Paste in the URL for a YouTube video and the analysis engine runs and shows only a few download options. Click the Gear icon, then the Show All button and you'll see more—including ability to get a 4K 3,840-by-2,160 file in WebM format. The 577MB WebM test download took about 6.75 minutes. Grabbing playlists was possible, but you must adjust download settings one video at a time. The confusing interface makes it hard to go back to the other videos in the playlist.
Jihosoft 4K Video Downloader not only helps to download YouTube videos and channels but also allows you to convert your videos from one format to another in a matter of minutes. This function will come in handy if you are having trouble to play your videos in your available media player due to compatibility issues. The steps to convert your videos are as follows:
The web browser Safari can be served as a Safari YouTube downloader, which offers an easy way to download any HD 720P/1080P videos on YouTube as well as other web. And for a successful YouTube videos download on Mac OS X, please make sure you have the latest version of Safari. Follow the detailed guides and learn how to download YouTube videos on Mac using Safari.
When it’s time to get started, you have to decide whether you want the free version or the pro version that offers a few extra features. From there, you put the URL for the YouTube video or channel that you want to download directly into the link box and select the resolution that you want. You get to pick the outputs, the place to save the information, the subtitle languages and all of the other important features and then you click the button to download. From there, you’re going to be ready to start listening and watching your favorite shows.

Not to be confused with the unrelated "pro" above, Video DownloadHelper supports a huge number of sites—even those for adults. You'll know a video is downloadable when the icon for the extension animates when you're on the webpage. Video DownloadHelper for Chrome has stopped working with YouTube—so it could get placement in the Chrome Web Store. You can get around that by using the Video DownloadHelper extension for Firefox. The developer has a Kiva initiative page, where it prefers you donate funds to those in need, which has raised over $137,700.
In tests, I had to make a switch from MP4 to MKV format to get my test video to download in 4K. 4KVD snagged the 579.4MB file in about 43 seconds. It defaults back to 1080p HD, so I made the same switch when downloading an Ultra High Definition (8K) playlist. If you enable the Smart Mode and its pre-sets, 4K Video Downloader can then do one-click downloads to your favorite format. If you want to download more than 25 videos at a time or subscribe to YouTube channels to instantly download the latest, that requires the $15 paid version. Playback of the MKV file via VLC Media Player was flawless.
YouTube allows you to watch, upload and share various videos including HD/4K content with users. It's said 500 hours of video are uploaded to the site per minute nowadays. However, YouTube only allows you to do such things when you connect to internet and YouTube doesn't allow 4K streaming in Safari. What could you do if you wanna save your HD videos on Mac or what if you are in a place, e.g. on a plane, where you cannot access to network? Hold on, we just gather up the top lists of free YouTube downloader for Mac software, browser extensions and online services targeted for Mac users to deal with downloads of YouTube videos on macOS freely.

NOTE: Beware of the ad traps on some helper sites—ads that look like they should be the download button to get your desired content, but they are not. Also, depending on the ad network employed by the site, your own virus detection software may throw up some warnings. The more the developers of sites rely on ads they don't control, or resort to trying to get you to place something on your system as "payment," the worse off we all are.

If you want to download videos from all popular video streaming services, now you just need this free online video downloader as a single solution. It not only allows you to download online videos from YouTube, but also other websites, including Vimeo, Dailymotion, Vevo, Metacafe, LiveLeak, MyVideo, Facebook and so many more. No matter what website it may be, the performance will stay the same. There is no limitations - you can download as many videos as you want from a number of different websites.
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