When it comes to downloading YouTube HD & UHD videos like 720P, 1080P, 4K & 8K, usually there are two ways for you. One is to install a desktop software, just like Gihosoft TubeGet or you can refer to the article I wrote before: 15 Best YouTube Video Downloader. The other way is to utilize a free online HD video downloader site, then you can download YouTube videos online without taking any extra computer space, which is the topic I want to write in this article. Now come with me to get a quick overview of these 12 best YouTube downloader online.

Part 1: Top 12 Online HD YouTube Video Downloader that Work in 2019

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Here is the list of best online YouTube video download sites handpicked for you.

1. ClipConverter.CC
2. Converto.io
3. Video Grabber
4. SaveFrom.net
5. Catchvideo
6. Y2mate
7. Online Video Converter
8. VidPaw
9. YouTubNow
10. QDownloader.net
11. YouTubemp4.to
12. SaveClipBro

1. ClipConverter.CC

ClipConverter.CC is a powerful online video downloader, users can use it to download videos from YouTube and other 10,000+ hot websites, and the resolution can up to full HD 1080p, 4K, even 8K. Besides, it has a built-in converter which allows users to convert videos to different formats. Moreover, this conversion function also provides users an opportunity to extract audios directly from videos, the audio formats include MP3, M4A and AAC. All these great functions make ClipConverter.CC stand out in online YouTube downloaders.

That’s not all, Clip Converter also develops an Addon for Firefox, Chrome & Safari. While watching YouTube videos online, you’re allowed to download these high definition videos directly to your PC & Mac or Android & iPhone phones. So when you want to save a HD video from YouTube fast and safely, you can rely on Clip Converter.

Pros:

Support download online videos in all kinds of SD,HD & UHD video resolutions, including 720p, 1080p, 4K & 8K
Built-in converter directly extractsvideos to audios in formats vary from MP3, M4A to AAC
Provide a plugin service to keep online videos to electronic devices

2. Converto.io

YouTube and Google are constantly adjusting and updating their functionalities towards rendering online video download sites inoperable, so don’t be surprised if one of your best online YouTube video downloader sites fails to work or shuts down unexpectedly. For example, KeepVid, once a popular online destination for keeping YouTube HD videos, is no more. But for users, you have to find an alternative for KeepVid. Luckily, there is a nifty alternative on the web when KeepVid doesn’t work, a site called Converto.io. Just pop your source video URL into the site, and click the “Convert” button, the video will soon be stored on your devices.

This online video saving website also gives users the opportunity to save and convert any YouTube video to MP3 and MP4 format without having to jump through hoops. Aside from that, you can also edit file name, modify ID3 tag and cut the audio if you choose download the online video as MP3 audio. That’s not all, to make your MP3 collection look awesome, Converto.io will automatically add album cover to all the MP3 you choose to download.

Pros:

Support download YouTube videos online in MP3 audio and MP4 video format
Allow editing file name, modifying ID3 tag, cutting MP3 before downloading
Integrated with multilingual service

3. Video Grabber

Video Grabber is an all-in-one YouTube online HD video downloader, a web-based YouTube downloader that gives users the possibilities to grab videos from hot online video-sharing sites such as YouTube, Lynda, Twitter, Twitch, LiveLeak, Vevo & TED. Another feature which catches my attention is that Video Grabber handpicks a series of hot videos and places them on its site, so you can watch, search, and download videos through this one-stop service even without heading to the YouTube.

Apart from downloading, it also offers a function of converting videos from YouTube to the formats like MP4, MKV, AVI, MOV, WMV & formats compatible with devices such as Samsung, Huawei, iPad, iPhone, PSP & iPod touch etc. If you think these are all the functions Video Grabber has, then you are totally wrong. It’s also integrated with a screen recording function, which will spare you much trouble of installing another screen capture product, and you can also use this recording feature to record live streaming video on YouTube. What a great application I have to say.

Pros:

An all-in-one video downloader allows users to search, find, download and convert videos.
Support downloading videos of 1080P and 4K resolution.
A built-in recording feature to record live YouTube videos like sports or games.

Cons:

Before you use every function you need to download a plugin.

4. SaveFrom.net

The first time you use SaveFrom.net, you have to download a file named SFHlper which allows you to add an extension of Chrome, only in this way can you download videos freely. It’s a feature sounds a lot like Clip Converter Addon. Another bad impression of this application is the ads, just leave it alone. As for downloading, the most impressive function of this product is that it provides an easier & innovative way to download videos – adding letters. So: how can you save YouTube HD videos as MP4 online with this SaveFrom? The answer is dead easy.

For example, let’s say that you are playing a YouTube video, the video is quite intriguing, and you are eager to keep it on your devices. Then you install the plugin, and you will take notice of the URL on the address line. At this point, you just add “savefrom.net/” or “sfrom.net/” before the URL starts with “https”, or use short domain names like ”ssyoutube.com” to replace “youtube.com”. Now you just press the Enter key, and you will be redirected to the download page like magic. By now you just choose your downloading parameter, hit download button, then the video will be directly saved to your portable contrivances like computer, mobile phone or SD card without any other superfluous operation.

Pros:

Provide an easier way to download videos

Cons:

Full of annoying ads
Many resolutions only support downloading video without audio

5. Catchvideo

Are you still looking for a simple and solid online YouTube video downloader website that can download YouTube video as MP4 or MP3 online? Then you just can’t ignore Catchvideo, as it’s one of the best online YouTube downloader available that provides robust downloading capabilities. This HD video downloader online comes with an intuitive interface, you can save the video file in available qualities without a glitch. Once you acquire the URL of the original video, choose your ideal video format, then it will download as soon as you click the download button.

As it’s a web-based application, so everyone can utilize it to save YouTube videos online without switching any device, as long as you have a browser, no matter if you are using a Windows, Mac, Android, IOS, Linux or other platform. It only supports download online videos in resolution not higher than 720P, that means even if you put a 4K video link on it, it will download this video in 720P eventually.

Pros:

Support do

Youtube Download Program For Mac