Edit MP3
Add Album Art to MP3
MP3 Compressor
MP3 Splitter
MP3 Trimmer
Best Audio Compressor
1. Best Audio Compressor online
2. WAV Compressor
3. OGG Compressor
4. Best Vocal Compressor
5. Best MP3 Compressor
6. Music Compressor

8 Best MP3 Compressor to Make MP3 File Size Smaller

8 Best MP3 Compressor to Make MP3 File Size Smaller

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 the MP3 files. This article identifies and shares the best 8 MP3 size reducer for Windows 11/10/8/7 and macOS. Free download the file minimizer or compress the MP3 file size online directly.

MP3 Compressor

Part 1: The Best 4 MP3 Compressor Software on Windows and Mac

Top 1: AnyMP4 Video Converter Ultimate

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.


  • Compress MP3 by splitting long audio files into clips.
  • Adjust bitrate and other options to make smaller MP3 file size.
  • Compress MP3 file size at a high compression rate..
  • Compatible with Windows 11/10/8/7 and Mac OS.
  • Batch handle MP3 files at the same time.


  • 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.

To compress MP3 files, you can compress the bitrate and cut down the audio length to make the size smaller. AnyMP4 Video Converter Ultimate can help you minimize the file size in these 2 ways.

Compress MP3 Directly

1.Free download the best MP3 compressor

Download this MP3 compression software on your Windows and Mac computer.

Navigate the Toolbox tab, and select Audio Compressor.

Select Audio Compressor

2.Select the MP3 compression rate

Drag and drop the MP3 file into this software, and then you can now see the editing interface. Here you can change the file Size by moving the compression rate processing bar. Or just click the file size value to downsize the MP3 file.

MP3 Compressiron Rate

3.Export the compressed MP3 file

Click Preview to listen to the MP3 audio quality to meet your demands. Optionally select the outpout format if you want to convert, and finally, click on Compress to start reducing MP3 size and saving the compressed file on your computer.

Compress MP3

Compress MP3 by shortening the file length

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.

Add MP3

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.

Split MP3

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.

Adjust MP3 Settings

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

Top 2: Monkey's Audio

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.


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


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

Top 3: 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.



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

Top 4: Freemake Audio Converter

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.


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


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

Part 2: Top 4 Free MP3 Audio Compressor Online

Top 1: AnyMP4 Audio Compressor Online

AnyMP4 Audio Compressor Online


AnyMP4 Audio Compressor Online is one of the easiest size compressor for such audio as MP3, WAV, WAV, FLAC, and more. This MP3 file compressor online can decrease the file size with a high compression rate.


  • Totally free to lower MP3 file size.
  • Online without any ad or downloading plug-ins.
  • Higly support a variesty of audio formats like MP3, WMA, AAC, OGG, FLAC, etc.
  • Compress MP3 file size on Android, iPhone, Windows and Mac onloine.


  • It does not support batch MP3 compression.

Top 2: You Compress

You Compress


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.


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


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

Top 3: MP3Smaller



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.


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


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

Top 4: Online Audio Converter

Online Converter


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.


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


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


Based on our review above, you should master at least 8 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.

What do you think of this post?


Rating: 4.8 / 5 (based on 497 ratings)

author Updated by Ted Klarso to Editor, Edit Audio
August 03, 2022 10:37

Related Articles

CommentAdd your comments to join the discussion here