Convert MP3 to WEBM in bulk.
Large MP3 files are supported.

You can convert MP3 Learn more about MP3 files to

Video
3g2 Select 3G2 as "to" format 3gp Select 3GP as "to" format amv Select AMV as "to" format avi Select AVI as "to" format flv Select FLV as "to" format mkv Select MKV as "to" format mov Select MOV as "to" format mp4 Select MP4 as "to" format mpg Select MPG as "to" format ogg Select OGG as "to" format vob Select VOB as "to" format webm Select WEBM as "to" format wmv Select WMV as "to" format
Audio
aac Select AAC as "to" format ac3 Select AC3 as "to" format flac Select FLAC as "to" format m4a Select M4A as "to" format opus Select OPUS as "to" format wav Select WAV as "to" format wma Select WMA as "to" format


How to convert MP3 to WEBM?

You can convert MP3 to WEBM with MConverter in three easy steps:
  1. Choose MP3 files from your device
    At the top of this page, drag and drop your MP3's.
    You can also click to select MP3 files using your operating system's file picker.
    Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an MP3 file you have copied to clipboard.
    Converting a folder with MP3 files to WEBM is also supported: simply paste or drag and drop it.
  2. Click or tap on WEBM from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's WEBM or something else.
  3. Download your WEBM files, after MConverter has finished processing them
    There's an option to automatically download the converted WEBM files, so you don't have to press the download icon for each WEBM.
    On desktop platforms, you can download the WEBM files to a different folder by clicking on SAVE TO...
    You may see a share icon as well. Use it to directly share the WEBMs with other apps.

About the formats

File extension .mp3
Category Audio file formats
Developed by MPEG (Moving Picture Experts Group)
Mime type audio/mpeg

Format description

MP3 is a commonly used audio format. The audio data is compressed inside the file, which is why MP3 files take up less space than WAV, for example. Even though the audio is compressed, the quality is still good enough for most personal use cases.
File extension .webm
Category Video file formats
Developed by Google
Mime type video/webm

Format description

WebM is a relatively recent video file format for storing high-quality, highly compressed videos with very little quality loss. Because it is also royalty-free, it is frequently used on the web for HTML5 video playback. Its container is based on a Matroska (MKV) profile. It used the VP8 and VP9 technologies for video, and Vorbis and Opus for audio.

Common questions about converting MP3 to WEBM

Will the video be black?

If the MP3 has no embedded album cover, then the video will be a just black background.
If your MP3 contains album art, the WEBM video will display it throughout the whole duration.

Can the WEBM be uploaded to YouTube without a "Processing abandoned" error?

Yes, your converted videos can be uploaded to YouTube successfully. Still, keep in mind that music copyright laws may have an impact on your uploads.

Can I convert MP3 to WEBM in bulk?

Yes, MConverter supports batch converting of multiple MP3's to WEBMs simultaneously. You can even drag and drop folders containing MP3's to convert to WEBM.
Pasting MP3 files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert an MP3 file to WEBM, if its size is 2 GB?

Yes, with MConverter Pro you can convert big MP3's, up to 2 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert MP3 files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.

Is converting MP3's to WEBM safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your MP3 files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your MP3's and other converted files immediately after finishing the conversion by clicking the bin icon.
Join thousands who have trusted us to convert over 12,549,862 files so far.

How long does it take to convert MP3 to WEBM?

For most audio files, the wait is usually around a minute. However, MConverter also supports converting larger audio files, meaning that it could take a while (up to over an hour, for example).

MP3 to WEBM Converter Rating

4.7
11 votes

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What our customers say

David I.
Dec 20, 2023
I recently stumbled upon MConverter, and let me tell you, it has been an absolute game-changer for me. If you're looking for a versatile, low-cost solution for all your conversion needs, this Swiss Army knife of a tool is a must-have!
I can't recommend MConverter enough. It has become an indispensable tool in my toolkit, streamlining my work and allowing me to focus on what truly matters.
Whitney
Aug 28, 2024
(updated)
This app is exactly what I asked for and is super easy to use. I am not a big time computer wizard so I need apps that do what they say do in a straightforward process. This app does just that! I love it and will continue to use it and will advise others of it as well. Good job to the owners/developers! And, sincere THANK YOU!
Daniel Awesome
Aug 20, 2024
Finally found a converter that did webp to gif without killing the animation. I tried around 12ish different converters and this is the only one that works so far. Hats off to you dev, thank you.
Antonio Hurtado
Mar 16, 2022
The most fantastic, fastest, best and easiest file converter I have ever had installed on my mobile. You deserve all the praise possible, more than happy, I am super grateful, I will always be grateful to you for this super fantastic application. This super fantastic app has literally saved my life, now I can read novels and books in any format, including pdf, which has very small print, in epub format 🌟🌟🌟🌟🌟 Thank you very much👏👍🤝😊❤️
matt32
Apr 6, 2023
AMAZING! This is the perfect file converter! The first thing I used it for was to convert WMV files to MP4 and it worked flawlessly. I then realized it supports all kinds of formats and is basically unlimited. The UI is very user-friendly and super easy to navigate. Incredible app, MConverter!
지나가던인간
Sep 22, 2021
(translated)
Although there are occasional errors, I was very impressed with the efforts of the developers to receive feedback from users and to improve the inconveniences quickly. I will be using it more often in the future.
Scott
Apr 28, 2022
I grab the webm I want to move to my phone and drag it over to the app, I click the type of file I want the webm converted to (mp4), it does it in 10 seconds. easiest 5/5 of my life.

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Frequently asked questions

Can I use it on multiple devices?

Yes, you can use the paid versions of MConverter on all your devices. Just sign in with the same account.

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