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WorkinTool Audio Compressor Online

Easily and quickly compress MP3, M4A, WAV, and more audio files online for free while keeping high audio quality.
Support MP3, MAV, M4A, WAV, WMA, AAC, FLAC, AC3, M4R, APE, OGG
Up to 4 files at a time within 20 M
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How to Compress an Audio File Online?

Step 1
Select or drag your desired audio files to upload to WorkinTool.
Step 2
Choose the wanted compression mode from Clear Compression, Normal Compression, and Extreme Compression. Then click on Convert to start reducing the audio file size.
Step 3
Within seconds, audio compression will complete. You can click the Download button to save the compressed files on your device. Of course, you can tap on Start Over to shrink MP3 or other audio files again.

Best Free Audio Compressor Online

WorkinTool Audio Compressor Online can effortlessly compress MP3 and reduce the file size of FLAC, AC3, M4R, etc., while maintaining high quality. Moreover, it can provide all-in-one solutions for compressing audio. Whether you want to make a clear, normal MP3 compression or shrink MP3 to the minimum size, you can find satisfactory answers in WorkinTool.

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WorkinTool Audio File Compressor Online Features

Forever Use and Entirely Free
Forever Use and Entirely Free
All users can shrink audio file size with WorkinTool Audio Compressor Online without limited times. More importantly, this audio file size reducer is completely free without any hidden charge.
Info Security Guaranteed
Info Security Guaranteed
WorkinTool uses the latest encrypted technology to protect users' privacy. Moreover, all the uploaded files will be deleted permanently from the WorkinTool cloud server after 24 hours.
Various Audio Formats Supported
Various Audio Formats Supported
As a powerful audio reducer, WorkinTool is compatible with eleven major audio formats, including MP3, MAV, M4A, WMA, AAC, FLAC, AC3, M4R, APE, OGG, and WAV.
Simple and Quick Compression
Simple and Quick Compression
With an intuitive interface and navigation, even novices can reduce the file size of MP3, MAV, etc., without tech support. Moreover, to improve your work efficiency, you can upload at most four files within 20M at a time to shrink file size in batches.
Strong Compatibility with Any Device
Strong Compatibility with Any Device
It has strong compatibility with any device. In other words, no matter which device you use, like iPhone/Android/Windows/Mac/Linux, etc., you can easily go to WorkinTool online page to reduce MP3 and other audio file sizes within seconds.
Flexible Selection of Compression Mode
Flexible Selection of Compression Mode
WorkinTool is designed with three compress modes: Clear Compression, Normal Compression, and Extreme Compression. Users can select different modes in different compression scenes for better output performance.  

People Also Ask

What does an audio compressor do?
Audio compressors can equalize the dynamic ranges of the loudest and lowest vocal parts. So it narrows down the audio gaps and reduces the audio file size.

Does compressed audio sound better?
No, the compressed audio sounds the same as the original MP3 file because the professional audio shrinker will keep the sound at the proper tune level and not damage or edit any sound effect detail.

How do I compress a large audio file to a smaller one?
If your MP3 file doesn't exceed 20M, you can use WorkinTool Audio Compressor Online to shrink file size in seconds. However, if you have an over-20M audio file, you'd better download a desktop version of an audio reducer that can compress MP3, M4A, etc., without size limits.
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WorkinTool Audio Compressor

Start Your Free Plan Now!
Several clicks can reduce large MP3, WAV, WMA, AAC, and FLAC files into smaller sizes with high audio quality. Moreover, you can compress audio files with WorkinTool without a penny at any time or anywhere. Just upload your MP3 files and make an audio compression immediately!
Free Download For Win 11/10/8/7
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