Compress Audio Online
Reduce the file size of your audio files directly in your browser.
How to compress an audio in 3 steps
Choose an MP3, WAV, OGG, M4A, AAC, OGA, FLAC, ALAC or AIFF audio file.
Select the quality.
Click compress and download your optimized audio.
Frequently Asked Questions
What is audio compression?
Audio compression reduces the file size of an audio file while trying to preserve audio quality. It works by encoding data more efficiently.
Are my audio files uploaded?
No. This tool processes audio files directly in your browser. Your audio files are never sent to a server.
Which audio formats are supported?
The tool supports common audio formats such as MP3, WAV, OGG, M4A, AAC, OGA, FLAC, ALAC and AIFF and compresses them while keeping the original format, all in your browser.
Does compression reduce audio quality?
The quality slider lets you balance size and quality: higher values keep more detail, lower values shrink the file more.
Is it really free and unlimited?
Yes, the tool is completely free and you can compress as many audio files as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Can I choose the output format?
The compressed audio keeps the same format (extension) as the original file: compression does not change the format.
About the audio compressor
Compress MP3, WAV, OGG, M4A, AAC, OGA, FLAC, ALAC and AIFF audio files online for free. Reduce the file size of your audio recordings while keeping good quality. Everything happens in your browser: audio files are never uploaded to a server, and you need no downloads or sign-up to get started.