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The best free YouTube converter 2021: watch YouTube videos offline

The best free YouTube converter
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A free YouTube converter will let you save a collection of clips to watch later on your PC, tablet, games console or smartphone in the right format for your device, with a minimum of hassle. Ideal if you're going to be offline for any length of time.

The best YouTube converters include preset profiles to take the guesswork out of choosing the optimum format, resolution, and compression settings for your device. They also let you save and convert clips in batches, and let you choose where they're saved once the download and conversion is complete.

Before you use a YouTube converter, bear in mind that downloading videos from YouTube is against the site's terms of service. There's also a risk of copyright violation unless the video is in the public domain, or you have permission from the copyright holder.

If you specifically want to save music or other audio from videos, check out our guide to the best YouTube to MP3 software. If you're using a mobile device, the best video editor for iPhone might be a worthwhile addition to your collection, turning your phone into a mobile production studio. We've also rounded up the best free video editors and the best YouTube downloaders.

The best YouTube converter available right now is: WinX HD Video Converter Deluxe
If you need to convert a video to a different format, WinX HD Video Converter Deluxe is the best software around. It's not free, unlike the tools below, but it can handle videos from virtually any source (including Facebook, YouTube, Vimeo, Blu-ray and DVD) and convert it to just about any file type. There are even preset profiles for playback on different devices.

4K Video Downloader

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1. 4K Video Downloader

Fuss-free conversion from YouTube and other video sites

Operating system: Windows
Reasons to buy
+Very simple to use+Works with all popular video sites+Supports 4K, subtitles and more
Reasons to avoid
-Fewer file formats than some

When you need a free YouTube converter, 4K Video Downloader should be your first port of call. It's able to convert videos with subtitles and annotations, and – as the software's name suggests – can handle resolutions up to 4K where available. Those are features you'd normally only find in premium software, but here they're completely free.

4K Video Downloader can also convert videos from many sites besides YouTube, including Vimeo and DailyMotion. You can even download and convert entire playlists up to 24 videos long (a premium subscription will unlock the ability to convert more).

The downside of 4K Video Downloader is its relatively small selection of conversion formats compared to some other YouTube converters; you can save video as MP4, MKV and 3GP, and audio as MP3, M4A and OGG. These will be enough for most purposes, and you get a wide choice of quality options (the exact number will depend on the quality of the source video) but it's a shame WMV and AVI aren't available.

If the choice of file types available covers your requirements, then you won't find a better YouTube converter.

Read our full 4K Video Downloader review

Free YouTube to MP3 Converter

(Image credit: DVDVideoSoft; Shutterstock)

2. Free YouTube to MP3 Converter

Convert videos and rip their soundtracks for offline listening

Operating system: Windows, macOS
Reasons to buy
+Very simple to use+Well designed interface+Automatic shutdown option
Reasons to avoid
-Contains ads

Free YouTube to MP3 Converter (from the superb DVDVideoSoft) is a wonderfully simple YouTube converter for ripping the audio from videos and saving it to your PC in a format of your choice.

The program lets you queue up multiple files for conversion and features a clean interface that clearly displays what files are waiting to be converted. There's even the option to download an entire channel, though this can be time-consuming so you might prefer to be selective.

If you do decide to go on a downloading spree, look in the options menu for the setting that shuts your PC down automatically once it's finished.

This is a particularly useful YouTube converter for musicians who may want to download guitar backing tracks to jam along to, or similarly you could grab a karaoke backing track to burn to a CD ready for that weekend party – provided you have the copyright holder's permission, of course.

Read our full Free YouTube to MP3 Converter review

Any Video Converter Free

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3. Any Video Converter Free

Convert videos from YouTube or any other source in seconds

Operating system: Windows, macOS
Reasons to buy
+Smart interface+Great choice of export options+Converts clips from any source
Reasons to avoid
-Bundled extra software

Any Video Converter Free can download and convert files from almost any source – CDs, locally stored files, or video sharing sites including YouTube, Facebook, Vimeo and LiveLeak. 

This free YouTube converter is packed with options, but still accessible. The interface is well designed, with tooltips to explain each function. You can paste in URLs from your clipboard, as with most free YouTube converters, or drag videos directly from Chrome or Firefox.

While installing Any Video Converter Free, you’ll be prompted to install ByteFence (an anti-malware tool) and a Yahoo browser extension. It’s not immediately obvious, but you can opt out of these using the small text links labelled ‘Click here to customize the installation’ and unchecking the boxes that appear. Or you might choose to leave them selected to support the developers.

Read our full Any Video Converter Free review

Free YouTube Download

(Image credit: DVDVideoSoft; Shutterstock)

4. Free YouTube Download

Makes it easy to fine-tune clips for playback on your chosen device

Operating system: Windows, macOS
Reasons to buy
+Lots of export formats+Supports HD video
Reasons to avoid
-Only downloads one video at a time

Another great tool from DVDVideoSoft, Free YouTube Download comes with a massive 25 video conversion options that can convert your files automatically once they've downloaded for viewing on different devices.

Its interface is almost identical to Free YouTube to MP3 converter – a clean, self-explanatory affair with more advanced settings tucked away in an Options menu. There, you can choose to shut down your PC once the download is finished, download via a proxy, and paste URLs from the clipboard automatically.

Clicking the file format details beside each thumbnail gives you a great choice of export options. Once you've made your selection, click the 'Download' button and your video will begin processing. You can only download and convert one video at a time without upgrading to the premium version of this YouTube converter, but there's little else to complain about.

Read our full Free YouTube Download review

YTD Video Downloader

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5. YTD Video Downloader

Dropped connection mid-rip? No problem – YTD will pick it up

Operating system: Windows
Reasons to buy
+Includes converter and player+Built-in editing tools
Reasons to avoid
-No batch processing-Includes bundled software

YTD Video Downloader can download and convert videos from some of the most popular video hosting sites, including Facebook, DailyMotion and College Humor and, of course, YouTube. It features the ability to convert videos into most popular video formats – from MP3 and MP4 to WNV, FLV, MOV, 3GP and AVI.

This YouTube converter's makers claim that the latest version is faster and more stable than previous releases. It also has the handy feature of resuming downloads automatically if your internet connection goes down temporarily.

The thing keeping YTD from a higher place in our roundup is the WebDiscover browser that comes bundled with the software, and is difficult to avoid if you don't want its search bar welded to your desktop.

Read our full YTD Video Downloader review

Daryl Baxter

Daryl had been freelancing for 3 years before joining TechRadar, now reporting on everything software-related. In his spare time, he's written a book, 'The Making of Tomb Raider', alongside podcasting and usually found playing games old and new on his PC and iPad. If you have a story about a newly-updated app or one that's about to launch, drop him a line.