7 Best MP3 Compressor Applications Available to Windows and Mac

It is well known that MP3 is a lossy audio format, but sometimes you still need a MP3 compressor for your device. MP3 compression means creating extra space and storing more files. Today, we have become comfortable to listen to music and audio files on mobile device, such as iPhone, Android phone or tablet. Even though manufacturers continuously expand the storage capacity, it cannot catch up the users' demand. Alternatively, we have to reduce the size of media files. This article identifies and shares top 7 best MP3 compressor applications for Windows 10/8/7 and Mac OS X/11/12.

Part 1: The Best MP3 Compressor across Platforms

When compressing MP3 files, you may focus on several things, like output quality, ease to use, and more. AnyMP4 Video Converter Ultimate is a powerful MP3 compressor for both Windows and Mac. It offers multiple ways to compress media files.

Pros

• 1. Compress MP3 by splitting long audio files into clips.
• 2. Adjust bitrate and other options to make smaller MP3 file size.
• 3. Keep the original audio quality as much as possible.
• 4. Compatible with Windows 10/8/7 and Mac OS X/11/12.
• 5. Batch handle MP3 files at the same time.

Cons

• After the free-trial, you need to purchase the MP3 compressor.

All in all, Video Converter Ultimate is the easiest way to compress MP3 on PC and Mac computer.

How to Compress MP3 Quickly

Step 1: Install the best MP3 compressor

Download and install the best MP3 compressor on your PC. There is a dedicated version for Mac. Then launch it and click the Add Files button to import the MP3 files you want to shrink.

Step 2: Split large MP3 files

If the MP3 file is very long, you'd better to split it into several clips. That can speed up the process of transferring and sharing. Click the Cut menu on the top ribbon to open the Clip window. Then click on the timeline and hit the Split icon to divide it into two clips. Hit OK to confirm it and go back to the home interface.

Step 3: Compress MP3 by adjusting bitrate

Click the drop-down button of Convert All to and select MP3 as the output format. Click Custom Profile icon next to MP3 format to open the Profile Settings dialog. Then adjust the Bitrate and Sample Rate to compress MP3 further. Finally, hit Create New and then Convert All button to compress MP3 files.

Not only MP3 audio files, it also supports compress the MP4 files on your computer.

Part 2: Top Free MP3 Compressor Software

Top 1: Monkey's Audio

Monkey's Audio is a fast audio compressor for Windows 10/8/7/XP/Vista. It is completely free of charge and easy to use. If you prefer to freeware with the simple interface, it may be a good option.

Pros

• 1. Highly optimized and efficient on MP3 compression.
• 2. Compress audio for most popular media players.

Cons

• 1. This MP3 compressor is not available to Mac.
• 2. It uses a lot of CPU when working.

Top 2: Audacity

Audacity is a popular audio solution for a wide range of platforms including Windows, Mac and Linux. As an open-source project, this MP3 compressor is free of charge, no matter you are using a new or old computer.

Pros

• 1. Integrate a MP3 compressor with several options.
• 2. Compress a recorded or an existing MP3 file.
• 3. It also optimizes the MP3 files up to 320kbps.

Cons

• 1. This MP3 compressor is difficult to master.
• 2. It may contain virus if you get it from unsecure site.

Top 3: Freemake Audio Converter

Freemake Audio Converter is not only a media file converter, but also able to compress MP3 files on Windows 10/8/8.1/7/Vista. The freeware is a good option to compress your MP3 files if you have limited budget.

Pros

• 1. Batch compress multiple MP3 files quickly.
• 2. Support a wide array of multimedia formats.
• 3. Include presets to convert and compress MP3.

Cons

• 1. The free version can only handle MP3 files less than 3 minutes.
• 2. It does not include audio editing features.

Part 3: Best MP3 Compressors Online

Top 1: You Compress

https://www.youcompress.com/mp3/

As its name said, You Compress allows you to compress MP3 audio files online. It does not require you to install software while compressing MP3. So, it is a convenient way to compress audio for most popular media players.

Pros

• 1. One-click to reduce file size of a MP3 file.
• 2. Only compress file size but not damage audio quality.
• 3. No limitations on how many files to process daily.

Cons

• 1. This MP3 compressor does not offer any custom options.
• 2. It cannot decrypt protected MP3.

Top 2: MP3Smaller

http://www.mp3smaller.com/

MP3Smaller is a good starting point to compress MP3 files online, though you have to endure some downsides, such as file size limit. If you only have several small audio files to compress, you can use this web app for free.

Pros

• 1. Upload a MP3 file from your hard drive for compression.
• 2. Offer ten presets to compress MP3 quickly.
• 3. Not require registration or login.

Cons

• 1. The MP3 compressor can only handle one MP3 per time.
• 2. You can only compress a MP3 up to 150MB.

Top 3: Online Audio Converter

https://online-audio-converter.com/

Online Audio Converter is an audio tool of 123APPS, which is available to almost all web browsers including Google Chrome, Firefox, Safari, etc. Though it is an online MP3 compressor, it is even better than some desktop software.

Pros

• 1. Absolutely free to use online.
• 2. Upload MP3 files from computer, Google Drive, Dropbox or URL.
• 3. Adjust quality and bitrate to shrink audio file size.

Cons

• 1. You have to view ads on the MP3 compressor page.
• 2. It cannot process copyright protected MP3 files.

Conclusion

Based on our review above, you should master at least 7 MP3 compressor applications to create smaller file size of MP3. They all have unique benefits and advantages. Audacity and Freemake Audio Converter, for example, are freeware for compress audio files on computer. Best online MP3 compressors allow you to do it without installing any software. If you do not want to lose much audio quality, AnyMP4 Video Converter Ultimate can meet your need. More questions? Write them down in the comment area below.