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

You can convert WEBM Learn more about WEBM files to



How to convert WEBM to OPUS?

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

About the formats

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.
File extension .opus
Category Audio file formats
Developed by Xiph.Org Foundation
Mime type audio/ogg

Format description

OPUS files contain audio in the lossy Opus format. It was developed for online streaming and supports variable bitrates. Similarly to MP3, which is also lossy, OPUS files do not contain an exact copy of the original audio recording. This is done to take up less space.

Common questions about converting WEBM to OPUS

Can I convert WEBM to OPUS in bulk?

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

Can I convert a WEBM file to OPUS, if its size is 2 GB?

Yes, with MConverter Pro you can convert big WEBMs, up to 2 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert WEBM 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 WEBMs to OPUS safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your WEBM 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 WEBMs and other converted files immediately after finishing the conversion by clicking the bin icon.
Join thousands who have trusted us to convert over 14,958,639 files so far.

How long does it take to convert WEBM to OPUS?

For most videos, the wait could be a few minutes or less. However, MConverter also supports converting larger videos, meaning that it could take a while (up to over an hour, for example).

WEBM to OPUS Converter Rating

4.8
6 votes

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Rated Excellent (4.8) on Trustpilot
I love MConverter. It's fast, efficient and accurate. Suzan Vaughn
Awesome --- quick and error free. Exactly what I needed. Mark Evans
Using MConverter is like having a magic wand for file conversions. Marcin Otta
High quality. Did the job. And did it well. Highly recommend. Cody H
Totally awesome: I converted a short MP4 to png image sequence Xander Treffers
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Real stories from people who rely on MConverter

Fred Janning
May 5, 2025
What I appreciate most is how user-friendly it is. It handles just about any file conversion I throw at it, quickly and efficiently. It's become an indispensable tool in my daily workflow. The fact that it supports so many formats is a huge plus, and it's saved me a lot of time and hassle. It's a solid, reliable tool, and I'd definitely recommend it to anyone who needs to convert files regularly.
TorQue MoD
Mar 31, 2025
I love this converter! It's free and easy to use, and it successfully converted .mov with transparent background to .png with transparent background in only a few seconds. It will now live permanently in my Tools bookmark folder :)
Roger StH
Nov 28, 2024
Excellent tool, it does exactly what it says it will do. It does it really quick. No fuss, just upload your file in the web interface, select the output and the download of your formatted file begins almost immediately. Super fast !
Ashley
Oct 16, 2024
AMAZING APP! I am so glad I found it!! It actually converts WEBM files without the weird bleeds! It's the only app I use to convert cute emotes from any site! I have been looking for years to find an image/gif converter but all the ones I found didn't convert emotes correctly. MCONVERTER DOES!! Hands down, best app!
Nadeem Khan
Sep 30, 2024
Had a problem in opening rtf files on my cell while in a meeting, then searching Google and fortunately found mconverter and that solved my problem within seconds for free. Indeed the entire teams deserve to be highly appreciated for this incredible software. Hats off to all of them. wishing you more successful developments in future. Stay blessed ❤️
George Moore
Sep 12, 2024
BRO I HAVE BEEN TRYING FOR LIKE 5 YEARS TO GET A VIDEO FILE TO WORK ON MY CHEAP RUIZU MP3 PLAYER TO WORK, AND THIS THING DID IT PERFECT!!!!! 10/10
Jelena Arbutina
Sep 3, 2024
I tried several programs to convert AI files to PNG, but only this program managed to convert both the text and the image exactly as in the original. The other programs transformed the text using their own fonts, which were not the ones originally used.
Lorenzo B.
Apr 18, 2025
(translated)
An exceptional product, with a fantastic, simple, immediate effective UX. A spatial combination of which format can be converted to which other format. A fast and flawless execution, with a very high quality of the output that maintains practically all the characteristics of the original document.
David I.
Dec 20, 2023
What truly sets MConverter apart is its Swiss Army knife-type functionality. This tool can convert anything to anything with just a click of a button. It doesn't matter whether you're working with audio, video, documents, images, or any other file type - MConverter has got you covered.
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👏
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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