Free online Audio Compressor
Shrink audio file size without losing quality. MP3, WAV, and more. Right from your browser
or drag and drop files here
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How to compress an audio file
- 1
Upload your file: drag and drop, use the “Choose a File” button, or select multiple for batch processing
- 2
Click the “Compress” button and wait a few seconds
- 3
Download the compressed audio
Note: Large files may take a few extra seconds to process.
Why compress audio files with Documents.io?
Compress audio files directly from your browser. Fast, easy, and free. Use our online Audio Compressor to reduce file size easily. No installs. Sign in and then upload, compress, and download in a click.
Secure audio compression
We take privacy seriously. Your compression uploads are kept only briefly (up to 4 hours) and then deleted for good.
Popular audio formats
Compress MP3 and WAV.
Tools that work together
Audio files which are compressed here work seamlessly with our other Documents.io tools, letting you compress and then transfer files without a hitch.
The audio compressor you need
A simple tool that works fast and stays out of your way: no ads, no watermarks, just clean compression.
Simple, fast, and free
Some tools are cluttered. This one isn't. Compress audio files in seconds. You get five compressions per day, with formatting preserved and large files are supported.
Part of something bigger
Our free compressor is built by the team behind the Documents app, ensuring seamless integration with your existing tools.