9 best YouTube to WebM converters Recommended

Try Wondershare UniConverter for free now!

Best YouTube to WebM converter to convert YouTube videos to WEbM format.

With billions of videos shared on YouTube, it's obvious you may want to save some for offline playback. But there's a problem; YouTube doesn't allow viewers to save videos locally. Therefore, you have to find an app to convert YouTube to WebM. But why not MP4? Okay, WebM uses VP9/VP8 video codec and Opus/Vorbis audio codec, which offer better audiovisual quality than MP4's H.264 video codec and ACC audio codec. Even better, most modern media players support WebM playback. So, let's discover the best YouTube to WebM converter for offline and online use.

Part 1. Top 5 YouTube to WebM converters for Windows, Mac, iOS, and Android

1. Wondershare UniConverter

youtube to webm
Average rating 4.7/5
Compatibility Mac and Windows
Convert YouTube to WebM
Convert video to WebM
Adverts X
Watermark X

Wondershare UniConverter is the best YouTube to WebM converter for Mac/Windows. It's simple to understand and losslessly extracts YouTube to WebM, MP4, MTS, 3GP, VOB, AVI, MKV, and other video formats. Besides videos, UniConverter can also convert YouTube to audio and device-optimized presets like iPhone 13, iPhone 12, Samsung S21, Blackberry, etc. In addition, UniConverter boasts editing capabilities like trimming, splitting, cropping, rotating, applying motion effects, changing background, and more.

wondershare uniconverter 13

Wondershare UniConverter — All-in-one video solution for Mac and Windows.

safe video converter free download Security Verified. 3,591,664 people have downloaded it.

90x faster to convert YouTube to WebM.

Save YouTube videos to WebM without any hassle.

Support more than 1,000 video, image, and audio formats.

Compress your video, audio, and image files without quality loss.

Save any online video or music from more than 10,000 platforms and sites.

AI-powered features such as Smart Trimmer, AI Portrait, Background Remover take your video to the next level.

The complete video toolbox to convert, compress, edit videos, burn DVDs, and much more.

2. EaseUS Video Converter

youtube to webm converter
Average rating 4.5/5
Compatibility Mac and Windows
Convert YouTube to WebM
Convert video to WebM
Adverts X
Watermark X

EaseUS Video Converter is an easy and intelligent WebM video converter for Mac and Windows PCs. With it, you can convert YouTube videos in bulk straight to WebM, MP4, MOV, MTS, 3GP, and other digital video formats. Also, EaseUS Video Converter supports 4K, HD, and 8K. You can even convert YouTube to audio formats like OGG, Vorbis, MP3, AAC, M4R, AU, and many others.

3. VideoProc Converter

webm from youtube
Average rating 4.4/5
Compatibility Mac and Windows
Convert YouTube to WebM
Convert video to WebM
Adverts X
Watermark X

VideoProc Converter is a multi-purpose software for Mac/Win. It houses a super-fast converter that can losslessly extract WebM from YouTube. Not only YouTube, but it's also compatible with other 1,000+ websites like Twitch, SoundCloud, Facebook, and more. Meanwhile, you can convert the videos to MP4, MOV, MTS, MP3, M4A, M4R, and more. VideoProc also features a 4K editor for cutting, cropping, rotating, compressing, etc. And best of all, it has a smooth screen recorder.

4. The Video Converter

The Video Converter
Average rating 4.3/5
Compatibility iOS
Convert YouTube to WebM X
Convert video to WebM
Watermark X

The Video Converter is a YouTube to WebM converter for iPhone and iPad. With this highly-rated app, you can import files from iPhone drive or iCloud before converting WebM, MOV, MP4, GIF, MP3, etc. Also, the conversion speed is super-fast. And after converting the video to WebM, you can natively open it on your favorite iPhone media player. But unfortunately, The Video Converter doesn't support batch conversions. So, keep reading to find out more options.

5. Tubemate for Android

youtube to webm converter Tubemate for Android
Average rating 4.3/5
Compatibility Android
Convert YouTube to WebM X
Convert video to WebM
Watermark X

As the name hints, Tubemate for Android is an Android app for converting YouTube to WebM and other standard video formats. It can batch convert YouTube videos and save them as MP3, WebM, MP4, OGG, etc. Also, Tubemate for Android allows you to preset the video resolution as 1080p, 720p, 480p, 360p, and more. Another thing, you can save your videos into the smartphone's internal storage or SD card.

Part 2. 4 best YouTube to WebM converters online for free

1. Online YouTube to WebM Converter

Online YouTube to WebM Converter

This is a web-based YouTube to WebM encoder for mobile and PCs. It's a relatively simple to use WebM converter. Just paste the YouTube video URL link, choose WebM as the target format, and tap it.


Simple ad-free user interface.

Convert YouTube to WebM or MP4.

It supports audio conversion.

4K and 8K supported.


Slow rendering speed.

Nothing else.

2. YouTube to WebM Converter

YouTube to WebM Converter

YouTube to WebM Converter is another online tool To save you time when extracting WebM from YouTube. On this website, just paste the YouTube video's URL link and convert it to WebM. You can also convert YouTube to OGG, WMV, MP4, and AVI formats. What's more, it features a YouTube audio and video cutter to trim and mute your video before transcoding to WebM. However, it can only reach 45 minutes. In addition, the video loading speed is painfully slow.


Convert YouTube to WebM, MP4, WMV, and AVI.

It supports OGG, MP3, and FLAC.

Cut and mute YouTube before converting.

No annoying adverts.


Maximum of 45-minute.

Slow speed.

3. Online-Convert WebM Converter

Online-Convert WebM Converter

Online-Convert is one of the best WebM converters on this list. First of all, you can upload files from multiple websites, including YouTube, by merely pasting the URL link. You can also load videos from Google Drive and Dropbox. After that, Online-Convert lets you retouch the video screen dimensions, bitrate, sampling rate, and codec. You can also cut, rotate, flip, and crop videos. Additionally, you can normalize and mute videos.


Upload cloud-based videos.

It supports thousands of conversions.

Trim video with precision.

Change video codec.


Lots of confusing video customization settings.

Rendering speed is average.

4. Kapwing

youtube to webm converter Kapwing

Lastly, use Kapwing to edit and convert YouTube to WebM. It's simple; copy the video link, paste it on the field provided, and Kapwing will load it quickly and losslessly on the editing studio. Then, exploit the available video customization tools. For example, trim the video by merely dragging the trimming bars on each end. Kapwing also lets you customize the video aspect ratio, background, add text, apply filters, and many other elements. Overall, it's a fantastic online video editor and converter.


Multitrack video editing timeline.

Adjust video aspect ratio accordingly.

Trim and split videos.

Directly share edited videos on social media.


Painfully slow rendering speed.

It crashes with significant files.


As you've seen, converting YouTube to WebM is excitingly easy with the right tools. I recommend an efficient desktop tool like Wondershare UniConverter. Either way, happy conversions!

* Some of the above codec formats may need to be supported by system.

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