15 Best Free Websites to Convert OPUS to MP3 Online

This article covers a list of the best free websites to convert OPUS to MP3 online. OPUS is an audio file format that uses an open, royalty-free and highly versatile audio codec. While OPUS can deliver significantly better audio quality compared to MP3, it is not as popular as MP3. MP3 is a more common audio format with wide hardware support.

In this post, I’m covering 15 free websites where you can convert OPUS to MP3 online. All these websites offer dedicated converters where you can add your OPUS files and get them converted to MP3. You can upload local files or fetch files from cloud storage for conversion. Most of these converters also offer additional conversions options. These options allow you to configure various aspects of the audio files. You can go through the post and check these converters in detail. This can help you pick a website that can fulfill your needs.

My Favorite OPUS to MP3 Converter

I would like to title FreeConvert as my favorite website to convert OPUS to MP3 online. This website offers many features to earn that title. For starters, it can batch process files with up to 1 GB of files per conversion. It offers additional conversion options where you can change the audio codec, adjust the volume, add fade effects, trim and reverse audio. Last but not least, it supports direct import and export to Google Drive and Dropbox. You can check it out in more detail along with the other websites below.

You can check out our other lists of the best free OPUS to MP3 Converter Software, Photo to Oil Painting Converter Websites, and Websites with HEVC to MP3 Converter Online.

FreeConvert.com

Free Convert is a free website that can convert OPUS to MP3 online. This website can convert a wide range of file formats online. All converters are similar to use and come with the same free quota. Starting with the input, you can drag and drop locally saved files or use the cloud import feature to fetch files from Google Drive, Dropbox, or via URL. You can add files up to 1 GB in one go. Then you can set the output format for all added files at once or individually. Before starting the conversion, you get additional options to customize each output as per your needs. These options let you trim audio, add fading effects, change codec, volume, etc. After that, when the conversion is done, you can directly download the converted files, export them to cloud storage, and delete them from this website. All that makes it a really good website to convert OPUS to MP3 online.

How to convert OPUS to MP3 online with Free Convert?

Head to this converter on the FreeConvert website using the link given below.
Click the Choose Files button and add your OPUS files there.
Additionally, customize the audio option by tapping the gear icon.
Lastly, click on the Convert button to start the conversion and get the MP3 files.

Key Points:

This website can convert multiple OPUS files to MP3 per conversion.
It has a 1 GB size limit per conversion.
Option to import files directly from the web, Google Drive, and Dropbox.
Configure audio parameters such as codec, volume, fade effect, etc.
Option to trim and reverse the audio.
Can export converted files to Google Drive or Dropbox account.
Generates a QR code to download the files on another device.
Option to delete the files permanently from the server after conversion.
Offers 750 conversion minutes per month for free.

Home Page

AudioToolSet.com

AudioToolSet offers a wide collection of online audio editors, converters, and other tools. This website offers one of these best converter tools to convert OPUS to MP3 online. This converter does not pose any limitations. You can add as many files as you need and convert them all in one go. There is no size limit as well. On top of that, you get the option to import files from Dropbox and remote URLs. This converter also lets you configure the conversion when needed. It allows you to change the encoder, quality, sample rate, and audio channels. You can apply those configurations to particular files or all the files. This way, you can easily convert any number of OPUS files to MP3 with this website.

How to convert OPUS to MP3 online with AudioToolSet?

Head over to this converter using the link given below.
Drop your OPUS files there or fetch them from Dropbox/URLs.
Customize the additional conversion options from the gear option if needed.
Start the conversion and wait for it to get finished.

Key Points:

This website can convert multiple files at a time.
There is no size limit on the upload.
Support cloud import from Dropbox and via URLs.
Option to change encoder, quality, sample rate, and audio channels.
Users can remove files from the server after the download.

Home Page

Online-Convert.com

Online-Convert is a cloud converter website that you can use to convert OPUS to MP3 online. You can use this website for free with some limitations. It has support for Google Drive and Dropbox. You can import files from your cloud storage and can also export them back after conversion. However, it is limited to 5 files per conversion in the free plan and you can perform 20 conversions per day. There is a 100 MB size limit per conversion. So you have to make sure the files you add in conversion must be up to that size only. Now moving to the good bits, it offers additional conversion options. With that, you can customize the bitrate, frequency, and audio channels for the output. And if you want to trim the audio, you can do that too. Do note that, unlike FreeConvert, the configured options get applied to all files in the conversion.

How to convert OPUS to MP3 online with Online-Convert?

Go to the Online-Convert website and select the Audio Conversion section.
then pick the Convert to MP3 option from there. Alternatively, you can use the link given below.
Upload your OPUS files to the converter or fetch from the cloud.
Configure the additional settings as per your requirements.
Start the conversion and wait for it to finish.
In the end, download converted files or export them to cloud storage.

Key Points:

This website can convert 5 files per conversion.
It has a size limit of 100 MB per conversion.
It limits the conversions to 20 per 24 hours.
Support cloud import including Google Drive, Dropbox, and via URL.
Option to configure the bitrate, frequency, and channels of the audio.
Option to trim audio and remove cover art.
Export the converted files directly to Google Drive or Dropbox.
Generates QR code to download the files on other devices.
Option to remove your files from the server when done.
Desktop notification to keep track of the conversion.

Home Page

Xconvert.com

Xconvert is another free website to convert OPUS to MP3 online. This website can process multiple files per conversion. You can drag and drop the OPUS files to the converter or you can import from Google Drive or Dropbox. Once you add the files, it gives several options to customize the conversion. This includes an option to make the bitrate variable, custom, or constant. You can also change the audio sample rate, audio channel, and trim the audio. With these options, you can configure all the files at once. This way, you can get all the files converted as per your specifications. Apart from that, it generates a downloadable link for each file with cloud export options. You can also play the audio online and re-edit before downloading.

How to convert OPUS to MP3 online with Xconvert?

Use the link given below to open this OPUS to MP3 converter.
Upload your OPUS files to the converter or fetch from the cloud.
Customize the conversion options as per your liking.
Start the conversion and wait for it to get finished.
In the end, download the MP3 files or export them to your cloud storage.

Key Points:

This website can convert multiple files at a time.
It has a size limit on input files, the exact size is not mentioned.
Support cloud import from Dropbox and Google Drive.
Option to change bitrate, sample rate, and audio channels.
Option to export the converted files to cloud storage.
Copy and share the downloadable link to every converted file.
Can play and re-edit the converted files.
Users can remove files from the server after the download.

Home Page

CDKM.com

CDKM is an absolutely free website built with many open-source projects. It has a free OPUS to MP3 converter where you can any number of files. You can add up to 10 files at once and convert them in one go. For the conversion, you get the options of local upload and remote URL. In either case, you can add up to 10 files each ranging up to 40 MB in size. The website allows you to convert all 10 files in one conversion as long as you are not using any adblocker. After the conversion, you get the option to download the converted files. This website can also show you a preview of the supported files without downloading.

How to convert OPUS to MP3 online with CDKM?

Go to the CDKM website using the link given below.
Upload your OPUS files to the converter or add from remote URLs.
Then pick MP3 as the output format.
Start the conversion and wait to get the MP3 files.

Highlights:

This website can convert up to 10 files per conversion.
It can process a file up to 40 MB in size.
Users can upload files or fetch files from remote URLs.
Option to trim audio, change bitrate, and sample rate.
It has an option to preview converted files before downloading.

Home Page

Online-Audio-Convert.com

Online-Audio-Convert is a free online audio file converter website. It supports all popular audio file formats. You can use this website to convert OPUS to MP3 and vice versa. The process is really simple and straightforward. The main highlight of this website is that you can add as many files as you need in conversion as long as it does not exceed the 2 GB size limit. Apart from that, it offers additional conversion options where you can configure the bitrate, sample rate, and audio channels. These configurations are applied to all the files.

How to Convert OPUS to MP3 with Online-Audio-Convert?

Follow the link given below to open this particular converter directly.
Make sure the output formats are selected correctly.
Upload your OPUS files to the converter.
Customize the additional conversion options as per your requirements.
Wait for the conversion to finish and then download the MP3 files.

Key Points:

This website can easily convert multiple files per conversion.
It has an upload size limit of 2 GB per conversion.
Supports import from Google Drive, Dropbox, and URLs.
Option to change the bitrate, sample rate, and audio channels.
Option to trim audio file and add tack info.

Home Page

Aconvert.com

Aconvert is a free online converter where you can easily convert OPUS to MP3 online. This converter comes with a 200 MB maximum upload size limit for the conversion. For that, it supports local uploads and cloud import from Google Drive, Dropbox, and URL. You can add up to 10 files per conversion and get them converted in one go. In terms of additional features, it allows you to configure various aspects of the audio before conversion. This includes audio bitrate and sample rate. With that, you can configure the output as per your needs.

How to convert OPUS to MP3 online with Aconvert?

Visit the Aconvert website and go to the Audio section from the left side of the screen.
This opens a convert screen. Simply upload the OPUS files for conversion.
Select MP3 as the output format for the conversion.
Configure additional options for bitrate and sample rate change.
Start the conversion to get the MP3 files.

Key Points:

Convert up to 10 files simultaneously.
Upload size is limited to 200 MB for each file.
Upload files from the web, Google Drive, or Dropbox directly.
Option to change the bitrate and sample rate of the audio.
Option to delete the files from the server after download.

Home Page

Mconverter.eu

Mconverter is a free multi-format cloud converter website. You can use this website to convert OPUS to MP3 online. It supports local uploads only and you can add up to 10 files per conversion. Do note that, it has a 200 MB size restriction per conversion. So all the files you add must be under the 200 MB size limit. While conversion, it has a toggle to automatically download files after conversion. You can check it and go back to your work. Once the conversion finishes, it automatically prompts for the download.

How to convert OPUS to MP3 with Mconverter?

Follow the link given below to open this converter on Mconverter.
Upload your OPUS files to the converter.
After adding the files, click on the MP3 format from the top.
This starts the conversion. Wait for it to finish and then download the converted files.

Key Points:

This website can convert multiple files per conversion.
It has a size limit of 200 MB per conversion.
Toggle to automatically starts downloading once conversion finishes.
Option to delete the files from the server after download.

Home Page

MIConv.com

MiConv is another free converter website that you can use to convert OPUS to MP3 online. This website is absolutely free and there is no specific limit on the number of conversions and the upload size. However, it limits 120 file conversions per hour to ensure stable conversion. For OPUS to MP3 conversion, you can pick the input and output format and then add your OPUS files all at once and convert them to MP3. This website supports local uploads only, it does not have any feature to fetch files from the web. Also, all the files you upload and convert automatically get deleted 2 hours after the conversion.

How to convert OPUS to MP3 online with MiConv?

Follow the link given below to open this converter in your web browser.
Click the Choose files button and select the OPUS files.
Make sure the output format is set to MP3 and start the conversion.
Once done, download the converted files.

Key Points:

MiConv can process multiple files simultaneously.
It can convert up to 120 files per hour.
No file size upload limit and no limit on the number of conversions.
Automatically deletes all the files 2 hours after the conversion.

Home Page

AnyConv.com

Any Conv is another free multi-purpose cloud conversion service. You can easily convert OPUS to Mp3 on this website. There is no restriction on how many files you can convert simultaneously. However, there is a 100 MB limit. You can add as many files that can fit under the 100 MB upload size limit for the conversion. Before uploading the files, you get the option to pick the same or different output format for each file individually. This converter does not offer any additional option to configure the output but it automatically deletes all the files 1 hour after the conversion.

How to convert OPUS to MP3 online with Any Conv?

Follow the link given below leading directly to this converter.
Then, click on the Choose File button and upload your OPUS files.
In the next step, make sure the output format is set to MP3.
Start the conversion and wait for it to end.
then, download the MP3 files after the conversion.

Key Points:

This website can convert multiple files per conversion.
It can process files up to 100 MB in size per conversion.
It lacks any additional options to configure the output.
All the files get deleted automatically 1 hour after the conversion.

Home Page

OnlineConvertFree.com

OnlineConvertFree is another free website that you can use to convert OPUS to MP3 online. This converter has a simple interface and starts with the upload screen. You have to upload the OPUS file there. It can convert up to 7 files per conversion but you get to pick one file first. After adding the first file, you get the option to add more files. This way, you can add up to 7 files per conversion. It has a 100 MB size limit per conversion so make sure the combined size of all the files is aligned with that.

How to convert OPUS to MP3 online with OnlineConvertFree?

Open this converter using the link given below.
Click on the Choose File button and add one OPUS file.
On the next screen, you can add more OPUS files.
After that, set the output format to MP3 for the conversion.
Start the conversion and then download the converted files.

Key Points:

This website can convert up to 7 files per conversion.
There is a 100 MB size limit on every conversion performed for free.
It lacks the additional options to configure the audio settings.

Home Page

Convertio.co

Convertio is a cloud-based converter where you can convert OPUSto MP3 online. You can upload the OPUS files to this website and convert those to MP3. For that, you can upload files from local storage or import videos directly from Google Drive or Dropbox. The overall conversion process is very simple and only takes a few seconds. If you want to change the bitrate and codec of the audio, you can do that too. This website puts a maximum size limit of 100 MB for each conversion. Whether you convert one or multiple audio files, their combined size must be under 100 MB. This converter allows 2 concurrent conversions to the free users with a limit of 10 conversion minutes per day.

How to convert OPUS to MP3 online with Convertio?

Go to the Convertio website and add your OPUS files there.
Click on the output dropdown and pick the MP3 format from the Audio section.
With the gear-icon, you can access and configure additional audio settings.
Then click the Convert button to convert the files.

Key Points:

This website can convert up to 2 files per conversion.
It has a 100 MB size limit per conversion.
Supports import from the web, Google Drive, and Dropbox directly.
Option to configure the codec, bitrate, audio channel, frequency, VBR, and volume.
It offers 10 free conversion minutes per day.

Home Page

CoolUtils.com

Cool Utils is a web-based file conversion service where you can convert OPUS to MP3 online. This website can only convert one file at a time. This is quite limiting but there is no size limit on the upload. This makes CoolUtils good for converting larger audio files. Apart from that, it has a straightforward conversion process. There is no option for cloud import but you do get to change the bitrate, sample rate, and audio channels.

How to convert OPUS to MP3 online with Cool Utils?

Follow the link given below to access this converter directly.
Upload your OPUS file to the converter.
Pick MP3 as the output format.
Configure additional options as per your requirements.
Start the conversion to get the MP3 file.

Key Points:

This converter converts only one file at a time.
There is no upload file size limit or conversion limit.
Option to set the bitrate, sample rate, and audio channel for the output.
A good website to convert larger audio files.

Home Page

OnlineConverter.com

OnlineConverter is another free online file converter website that offers a wide collection of converters. It has an online OPUS to MP3 converter that can process one file at a time. It supports local uploads with a file size limit of 200 MB. It also comes with a conversion option that lets you change the audio quality. This is optional, you can use it when needed. This way, you can convert OPUS to MP3 on this website one file at a time.

How to convert OPUS to MP3 online with OnlineConverter?

Use the link given below to open this converter directly.
Upload your OPUS file to the conversion.
Check the Options checkbox to change the audio quality if needed.
Start the conversion and get the MP3 files.

Key Points:

This website converts one file at a time.
It can process a file up to 200 MB in size.
Option to change the quality of the converted audio file.
Option to delete the converted files from the website right after conversion.

Home Page

File-Converter-Online.com

File-Converter-Online is yet another website where you can convert OPUS to MP3 online. It is a simple online file conversion website that processes one file at a time. You can upload a file from local storage or import it from Google Drive or Dropbox. You can also import a file by adding a URL to it. There is no upload size limit mentioned on the website. After the conversion, it automatically prompts to download the file and removes it after 3 hours.