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

Max size: 200 MB per file

You can convert MP3 Learn more about MP3 files to

Video
Audio


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.
    You may see a share icon as well. Use it to directly share the WEBMs with other apps.

About the formats

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

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.
Extension webm
Category Video file formats
Developed by Google
Mime type video/webm

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

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 1 GB?

Yes, with MConverter Premium you can convert big MP3's, up to 1 gigabyte each.
The free version lets you convert files up to 200 MB. If you need to convert MP3 files over 200 megabytes, try MConverter Premium.

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. 24 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 others who have trusted us to convert over 2,854,204 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).


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