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Best 6 Ways to Convert MP3 to WebM Windows/Mac/Online

Vanessa Chiang updated on Oct 14, 2021 to Video Converter Tips

MP3 is one of the most widely used audio file formats for containing audio data and transmitting audio files digitally. WebM is also the most common format for streaming videos online as it offers small-size files and real-time delivery. WebM is compatible with Google Chrome, Opera, Firefox, and Internet Explorer. Its excellent compatibility becomes one of the reasons to convert MP3 to WebM.

A WebM file is easy to stream and takes less storage: a WebM file is 6% of the size of the same MP3 file. In this article, you will know the characteristics of WebM as well as how to convert MP3 to WebM with 6 excellent MP3 to WebM converters on Windows, Mac, and online.

Top 6 MP3 to WebM Converters on Windows/Mac/Online:

Related Content: >> What is a WebM File?

How to Convert MP3 to WebM on Windows – 2 Ways

Out of the numerous MP3 to WebM converters on Windows OS, here are 3 of the best converters you should have a try.

Tool 1. EaseUS Video Converter 

This is the converter that you should know if you want to convert an audio file to WebM format, it's EaseUS Video Converter. Converting audio to video is not as easy as converting videos, because some software requires you to add a picture or a video to the audio. Don't worry. EaseUS Video Converter allows you to convert the audio files directly to video format.

This software is integrated with the GPU acceleration function so that you can get the converted WebM videos very quickly. And the audio quality will maintain perfectly during the conversion so that the sound of the WebM file can be as great as the original file.

Key Features:

  • One of the free video converters for Windows
  • Support extracting audio from videos
  • Support converting audio to video formats
  • Offer file merger to combine video and audio files

All those features make this converter the best MP3 to WebM converter on Windows. If you want to have a try, click on this button to download it.

Steps to Convert MP3 to WebM with EaseUS Video Converter:

Step 1. Import the Audio File

Open the installed converter, EaseUS Video Converter. From the main interface, choose "Video Converter" > "Choose Files". Import the audio file as you like. 

choose video converter

Step 2. Make Your Conversion

Now, you need to choose the output format. Here is WEBM. At the same time, choose the desired Quality and Resolution. For more options, choose "Edit". Once you are satisfied with the settings, hit "Convert All". 

video webm format

Step 3. View, Play, and Rename the Converted File

Once the converting process is ended, choose the "Finished" tab from the top side. The converted format is in WEBM. Also, you can play and rename this file. 

output webm

Tool 2. Miro Video Converter 

It is an excellent open-source video/audio converting application that offers a variety of out-of-the-box features. What distinguishes this software from others is the convenience during the converting process, as you don't have to install any add-ons that expand its functions. What this converter offer you are enough. And this feature makes optimizing and publishing videos online super easy, even for beginners who have never experienced format conversion.

This converter works with flash video files, such as Windows Media Video, Ogg Theora, and other standard audio formats like MP3. This characteristic equips this software well with the ability to convert MP3 to WebM. Moreover, its interface is user-friendly, and you only need to drag and drop MP3 files to import them into this software.

Miro Video Converter MP3 to WebM Converter Windows

This software is free, open-source, and worth the use. Let's learn how to convert MP3 to WebM using Miro Video Converter.

Step 1. Download, and launch the Miro Video Converter on your device.

Step 2. Click "Choose Files" or drag and drop the file into the program.

Step 3. Click "Format" and select WebM from the drop-down menu.

Step 4. Then, click "Convert." It will need some time to convert, and after that, the file will be saved in the destination folder.

Tool 3. OpenShot Video Editor 

OpenShot Video Editor is another powerful open-source converter for both Windows and Mac users. It's primarily designed to edit video and audio files, but its excellent compatibility enables this software to work as a format converter with helpful editing features. As a software integrated with the hardware acceleration function, OpenShot Video Editor works faster than many competitors, making it suitable for users who have a pile of files that need to be processed.

If you want to modify the media files, it provides you with a complete set of editing tools, including cropping, trimming, and splitting. You can delete a fragment, merge several files into one, and save audio and individual frames from a video file.

Open Shot Video Editor Mp3 to WebM Windows

Here is how you can convert MP3 to WebM using this software.

Step 1. Download, install and launch OpenShot Video Editor on your device.

Step 2. Click on "File"> "Import Files." Then, browse to select the MP3 file that needs to be converted and open it.

Step 3. Click the red "Export Video" button in the main toolbar and choose "To WebM."

Step 4. Now, choose "WebM" from the drop-down menu of the "Target" Tab. Then, click on the "Export Video" button to save the converted file.

How to Convert MP3 to WebM on Mac – 1 Way 

Robust format converters on Mac are less than those on Windows PC, so that users may find it's hard to get a competent MP3 to WebM converter on Mac. Don't worry. Although audio to video converters are not enough, some video editors or even media players can make up for the vacancy, such as VLC Media Player.

VLC Media Player is a free, open-source video and audio converter with other tools that allow you to edit, record, and even convert media files. Its user-friendly interface and high versatility make this player one of the most popular media file processing applications worldwide. As it supports both audio and video formats, converting audio to video, such as converting MP3 to WebM, becomes as easy as doing any other conversion.

VLC Media Player MP3 to WebM Converter Mac

Let's explore how to do MP3 to WebM conversion with VLC Media Player.

Step 1. Download, install and run the program on your device.

Step 2. Click on "File" and select "Convert/Save" from the drop-down menu.

Step 3. Click "Add," browse, and open the MP3 file you wish to convert. Select "WebM" from the profile.

Step 4. Click on "Browse," select the output file's destination and click "Save." You will get the converted file soon.

How to Use Online MP3 to WebM Converters – 2 Ways

WebM.to and Video Converter are two online tools perfect for easy and fast MP3 to WebM conversions. Let's look at them one by one.

Tool 1. WebM.to 

WebM.to is an efficient and easy MP3 online converter. Not only does it convert MP3 to WebM but also to a lot of other formats like MP4 and AVI. It is a simple digital tool with an intuitive interface that tells you how to use it.

Despite fast MP3 conversion, it has three MP3 tools that will make your media work even more straightforward. It offers you an MP3 API tool and a player. You can play MP3 files on it and edit them. If you want to share an MP3 file in a ZIP, it lets you do that as well.

WebMto MP3 to WebM Converter Online

Let's learn to convert MP3 to WebM using WebM.to.

Step 1. Click "Select your files" or drag and drop the MP3 file to the tool's website.

Step 2. Your file will automatically go to the queue and will be converted to WebM.

Step 3. After the automatic conversion, a download link will appear on the screen, click it, and that is all. 

Tool 2. Video Converter 

Video Converter is another online tool for converting MP3 to WebM online. It does the job of conversion fast without decreasing the media quality even slightly, but it's worth noting that the conversion speed depends on the file size. Bigger files take a long time and need a steady internet connection interim. A little internet interruption will fail the process entirely, and you will have to start again.

Like most online tools, this one also does not keep your uploaded or converted files in their server for more than a day. So, you can feel free and secure to process your media files with it. 

Video Converter MP3 to WebM Online mp3 to webm

Let's find out how to convert WebM to WMV on Video Converter.

Step 1. Open the Video Converter, the MP3 to WebM converter. 

Step 2. Drag and drop the MP3 file you want to convert. Or you can also add the video URL. 

Step 3. Click on the "Start Conversion" button to start the process. After completing the conversion process, download the converted file from the download button. 

What is a WebM File? 

WebM is a royalty-free format designed for sharing audio and video content online. Like MP3 and MP4, it is the container format. So, these format files are influenced by the codec more than the format itself. It uses VP8 or VP9 codec for video file compression and Vorbis or Opus audio codec for audio compression.

It was offered as an alternative to using HTML 5 videos and HTML5 audio elements. It has good compatibility with browsers like Chrome, Firefox, and with most of the media players.

Conclusion

All you need for a fast MP3 to WebM conversion is good software that is trustworthy, reliable, and efficient. The converters mentioned above contain these qualities. You can trust them and use them for multiple purposes, e.g., to convert MP3 to WebM and edit the files before/after conversion.

WebM.to and Video Converter are online converters, while VLC Media Player is for Mac users. For those using Windows devices, EaseUS Video Converter is the best choice.

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