Please wait...
The chosen files cannot be converted to the same target format.
Please remove some of the files, preferably leaving ones with the same or similar source formats.
Check below for errors.
OR
By selecting a target format, you agree to our Terms and initiate the conversion.
Your conversions have used server resources for about
[time].
Conversions use server resources without any cost for you.
Consider supporting us and unlock more features:
Happy with the converted files?
Your files are automatically deleted from our servers after 4 hours.
... selected
Drop More Files Here...
How to convert MP3 to WEBM?
You can convert MP3 to WEBM with MConverter in three easy steps:
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.
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.
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 12,471,625 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
Made with 💙 in 🇧🇬
Blocking ads?
Get 9 more conversions for FREE by adding an exception for our website in your ad blocker and in Tracking Prevention (if it's set to Strict).