The Complete Guide to Downloading and Converting YouTube Videos

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YouTube is a treasure trove of delights. From music videos to documentaries to vlogs to cat and dog videos, you can find just about any content on YouTube for free and watch it from any computer or mobile device with internet access.

But what if you want to consume YouTube content without internet? In that case, you need to know how to download YouTube videos for offline playback and convert them to other file formats, typically MP3.

This article describes three distinct categories of YouTube MP3 converters, giving you plenty of options how to download your favorite videos and convert them to a universally supported file format that you can play on your smartphone, MP3 player, or in your car.

Best YouTube MP3 Downloader Browser Addons

To download videos from YouTube and convert them to MP3 files, you don’t need anything besides your web browser. YouTube MP3 downloader browser addons are available for all major web browsers, including Chrome and Firefox, and they satisfy the needs of most users.
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Pros: stable and polished, compatible with the latest version of Firefox, easy to use
This popular Firefox addon is also among the oldest addons that can download YouTube MP3 files. Because its developer has been actively maintaining it and adding new features, Easy Youtube Video Downloader Express can do just about anything you could possibly want from it, including downloading 256 kbps MP3 files with a single click. The addon has been featured by the Firefox addon team for its clean design and efficient nature, and thousands of positive reviews confirm that Easy Youtube Video Downloader Express is the best YouTube to MP3 downloader for Firefox.
Easy Youtube Video Downloader Express
Pros: simple, compatible with many different video file formats, actively maintained
Video Downloader Professional is a simple addon for Google Chrome that does one thing and does it well: it downloads YouTube videos with a click of a button, allowing you to watch them later even without internet access. Besides YouTube, Video Download Professional can also download online videos from other sites and in a number of different video file formats, including .flv video, mp4, avi, asf, mpeg, and others.
Video Downloader Professional
Pros: supports most popular video-sharing platforms, one-click download process, very popular
Coming back to Firefox, Video DownloadHelper is a comprehensive downloader and converter that supports most popular video-sharing platforms, including YouTube, DailyMotion, Facebook, Periscope, Vimeo, Twitch, Liveleak, Vine, UStream, Fox, Bloomberg, RAI, France 2-3, Break, Metacafe, and countless others. Whenever the addon detects that online videos are available for download, it displays a discreet notification that you can simply click on to select your preferred file format and start the download process.
Video DownloadHelper

Best YouTube MP3 Downloader Online Converters

In the previous section of this article, we’ve introduced three best YouTube to MP3 converters for Firefox and Chrome, but what about the users of Safari, Opera, or Edge? What’s the best way for them to download YouTube videos and convert them to other file formats? In most cases, best YouTube MP3 downloader online converters are the answer.

Simply put, online YouTube downloaders and converters are web services that allow users to input YouTube video URLs to download them. Most online YouTube downloaders and converters are free, with their revenue coming from advertising. The biggest advantage of online YouTube downloaders and converters is the fact that they’re available from any modern web browser. Their downside is unreliability as connection drops, and download interruptions are quite frequent.
Pros: easy to use, rich download options
Converto describes itself as the easiest way how to download any YouTube video to MP3 or MP4. To use the service, you simply copy a YouTube URL, paste it on Converto. The service will automatically process the URL and present you with several download options. You can edit filename, ID3 tags, select the part you would like to cut, or change video quality. Once you’re satisfied with your download settings, simply click the “Convert” button to begin the download process. Converto is completely free, and its developers promise that the service will remain free forever. The only limitation is the maximum video duration of 120 minutes.
Converto.io
Pros: multiple quality options, simple
KeepVid is a free web service for downloading YouTube videos in a number of different file formats and levels of quality. Just like Converto, KeepVid is simple to use and completely free. Whereas Converto is limited to 120-minute-long videos, KeepVid can download even videos that are several hours long without any problem. Simply paste the URL of the video you would like to download and click the “Download” button. Depending on the quality of the YouTube video, KeepVid will offer you anywhere from one to eight download options, and you can just click on any of them to begin the download process.
KeepVid
Pros: elegant yet capable, compatible with all major web browsers
Don’t let the simplistic design of Y2mate fool you into thinking that this is some kind of half-baked online YouTube downloader. The simple façade hides one of the best YouTube MP3 downloader online solutions. Y2mate offers unlimited downloads for free, it doesn’t require registration, it can download all popular video and audio file formats, and even a child can figure out how to use it. Y2mate has been around since 2016, and the service has maintained flawless compatibility with all major web browsers to this day, which speaks volumes about the dedication of its developers to provide users from around the world with a powerful yet free web service that can help them enjoy their favorite content even without internet access.
Y2mate

Best Offline YouTube MP3 Converters

Web browser addons for downloading YouTube videos and various online YouTube MP3 downloaders and converters are perfect for casual users who only need to download a handful of YouTube videos a month, but is there also a suitable solution for people who download YouTube MP3 and video files on a daily basis? Yes, there is! In fact, there’s a whole host of best offline YouTube MP3 converters for Windows, macOS, and Linux. We’ve selected three such applications based on user reviews and our own personal experience.
Pros: supports most common video and audio file formats, paid version with extra features is available Any Video Converter can take just about any video from the internet and convert it to any compatible format. The supported video inputs include MP4, MPEG, VOB, WMV, 3GP, 3G2, MKV, MOD, M2TS, RMVB, AVI, MOV, FLV, F4V, DVR-MS, TOD, DV, MXF, OGG, and WebM. These formats can be converted to WMV, MPG, MP4, AVI, ASF, M2TS, 3GP, 3G2, FLV, MKV, SWF, WEBM, HTML5 WebM, HTML5 OGG, and HTML5 MP4. It’s this flexibility coupled with Any Video Converter’s ease of use that is behind its popularity. Unlike many other similar applications, Any Video Converter is 100 percent clean and doesn’t contain any spyware, malware, or intrusive ads.

There’s also Any Video Converter Ultimate, which is up to 30 times faster than its free sibling because it relies on NVIDIA NVENC transcoding acceleration technology. We recommend Any Video Converter Ultimate to anyone who needs to preserve the original image and video quality when converting video files and doesn’t want to take chances with a free solution that may or may not be reliable.
Any Video Converter
Pros: available in multiple languages, 100 percent free
With aTube Catcher, you can download an unlimited number of videos from all popular online sources, including YouTube, Facebook, Vimeo, Dailymotion, Metacafe, Spike, and Yahoo!. The application can convert the downloaded videos to 3GP, 3G2, AVI, XVID, MP4, MP3, MP2, WMA, WMV, GIF, FLAC, WAV, PSP, MPG, VOB, OGG, MOV, AVI, and several other less known multimedia file formats. aTube Catcher is available in multiple languages, is 100 percent free, and doesn’t contain any malware or bundled applications.
aTube Catcher
Pros: clean user interface, supported by donations
There are many things to like about ClipGrab. The application has a clean user interface, it works with virtually all major video sharing sites, and it offers a plethora of options for downloading and converting video files. It’s also free and supported by donations. Since ClipGrab’s users directly fund the application, the developers listen to their input and frequently implement new ideas based on the feedback they receive.
ClipGrab