It’s possible that you’ll need to convert MP3 to OPUS at a certain point. OPUS is a premium audio file format with exceptional audio quality, especially at low bitrates, despite its large file size. Trying to find the right MP3 to OPUS converter, on the other hand, can be difficult. So, in this article, you’ll learn about the top audio file converting apps for 2021.

In general, OPUS provides better sound quality than FLAC, AAC, and MP3 audio file formats. OPUS is also a royalty-free audio file format that is commonly used in VoIP apps like WhatsApp. It’s so widely utilized in storage and playback apps that it’s been dubbed the “Swiss Army Knife” of audio codecs by creators.

What is an OPUS file?

An OPUS file is an audio file format that has been encoded in the Opus format, which is a lossy audio codec designed for Online streaming. It offers varying bit rates from 6 kb/s to 510 kb/s and employs both SILK (used by Skype) and CELT (from Xiph.Org) codecs. The Ogg audio container format is most typically used to hold OPUS files. As a result, the files are also known as Ogg Opus files.

Voice over IP (VoIP), video calls, and in-game chat all employ the Opus codec. The IETF regulated the Opus file format, which is preserved by Xiph.Org.

Because the Opus codec is mostly used for streaming, items with the .opus extension are uncommon.

What is an MP3 file?

MP3 is a technical standard, and MPEG Audio Layer-3 is a compressed audio file format founded by MPEG (which stands for the Moving Picture Experts Group). A file extension and compression technique for compressing a sound series into a tiny file while maintaining comparable audio quality to a CD. MP3 files are commonly used to store a song or the entire CD data and require less disc space. Because MP3 files take up very little storage space, a computer may save a large number of music files, possibly hundreds or thousands.

Prior to the invention of MP3, music producers made money by keeping music on CDs and selling them to music fans. The music on a CD is uncompressed and of excellent quality. However, there is a flaw with it. To keep the music in excellent quality, a CD takes up a lot of space; a 3-minute song takes up roughly 32 megabytes. It can take up to two hours to download a track.

Later, MP3 was created, which uses lossy data compression to encode data via inexact approximation and partial data discarding, resulting in a significant reduction in file size when compared to uncompressed audio. A 32-megabyte CD song can be reduced down to 3 MB using MP3.

This is why the music business has been altered by MP3. It enables users to download and store songs fast on their PC and mobile device.

6 ways to convert MP3 to Opus on Windows and Mac online


Install Convertio if you want to convert numerous MP3 audio files to OPUS at the same time. Even though you’ll have to deal with a lot of ads, this software is very easy to use and offers a variety of audio formats, including OPUS, OGG, AU, MP3, M4A, and others. This site can also alter the bitrate, sampling rate, audio channel, adjust loudness, and cut audio, but that’s not all. Just keep in mind that Convertio has a daily limit of 100MB.


+ It’s easy to use.

+ There are numerous customizing possibilities available.


- The maximum upload capacity is 100MB.


Another one of a few very popular audio conversion software is AConvert, which can convert OPUS to MP3, FLAC, WAV, AAC, AU, and other formats. AConvert, like Convertio, allows for bulk conversions with 100% full resolution. You can also chop, combine, tweak the sample rate, and change the audio bitrate. PDF, Word, images, archives, eBooks, and videos can also be edited. On the other hand, this app is ad-supported.


+ Platform that is multilingual.

+ Sounds that curt and combine.


- UI with a lot of ads.


The website OnlineConvert can transform between over 1000 file types, including MP3 to OPUS and vice versa. Although the platform is a touch busy, this program is extremely user-friendly and has numerous customization options. You can reduce, change the bitrate, and tweak the sample rate in MP3 before converting it. However, like the majority of the sites on this list, OnlineConvert is ad-supported.


+ Customization options are really useful.

+ Batch conversion is supported.


- It’s not the quickest app.

Online Converter

Online Converter is another fantastic source for converting MP3 to OPUS losslessly if your MP3 file is less than 200MB. MP3 files can be converted to AMR, OGG, ALAC, FLAC, and other formats. Batch conversions are not supported by Online Converter. Worse, the site contains numerous useless advertisements. However, it is a wonderful free program to use in general.


+ Many sound formats are supported.

+ Conversions that are lightning-fast.


- Advertisements that aren’t required. is a straightforward file conversion tool that gets the job done quickly. While there are some advertisements on the platform, this should not discourage you from effortlessly converting your MP3 files to OPUS. The website is simple to use and comes in English, German, Spanish, and French.


+ Platform that is simple to use.

+ Bulk conversions are supported.


- There are no options for personalization.

Safe Audio Converter

You could also use our audio converting tool, Safe Audio Converter. It is an online tool, which is completely free to use as well. Our highly responsive design generates the desired output in no time, and the tool has been created in such a way that anyone can use it.

You don’t have to be concerned because the complete process is happening in your browser and no files are sent to our servers. As a result, your files are completely safe. It is completely free and online, which means you can use it as often as you need to, without having to pay anything and without having to install anything. It can run on a variety of platforms, including Mac, Linux, Android, and iPhone, and it also works well in a variety of browsers. We don’t believe in sacrificing quality. We ensure that the file’s quality is preserved while converting MP3 to Opus.

Using our tool is very simple. All you have to do is choose an audio file by clicking the “Choose Audio File” button or pick Dropbox/Google Drive from the drop-down menu. Select the audio track (MP3) from your device that you want to convert.

Place the audio file on the site. The audio track will be processed by our software in a few seconds.

The track will then be converted from MP3 to Opus by our tool.

A “Download” button displays on the screen once the conversion is complete. To save your content to your device automatically, click Download.

That’s all there is to it! You’ve completed your task.