Audio Compressor

Smaller files. More room for your sound.

Audio Compressor Secure file processing

Drag & drop files here

or choose a little sound from your device

Choose FilesUp to 100 MB per file · 10 files · 30 min max

Choose your format

Make it yours

Pick your quality

A balance of size & sound

Audio quality

Good sound starts with a good source.
Higher bitrate doesn’t restore lost detail.

Advanced settingsFine-tune your audio

Sample rateAudio channelsAudio codecVolume (%)

Files expire after 60 minutes.
Your privacy matters

Private, temporary processing No account needed 100% free to use

A LITTLE KNOW-HOW

Balance file size and listening quality

Choose a lossy output such as MP3 or M4A and a lower bitrate. At 96 kbps a minute of audio is roughly 720 KB before container overhead. Already compact sources may not become smaller.

Your output, your settings

MP3 uses lossy compression and offers broad playback compatibility. 192 kbps is a useful starting point for music; a higher bitrate makes a larger file but cannot restore detail already lost in the source.

How to use Audio Compressor

Choose files from your device. Check the file and duration limits shown above.
Set your output and any editing options. Keep the original file if you may need it again.
Select Convert Audio, wait for processing, then download your result before it expires.

Privacy and file handling

Your files are uploaded to this server. Downloads are restricted to your browser session and expire after 60 minutes from upload. A scheduled cleanup removes server copies. See our Privacy Policy.

GOOD QUESTIONS

A few things
you might wonder.

Still curious? Get in touch.

Is it really free?

Yes. All tools are free to use, with no registration, subscriptions or payments. Upload and processing limits apply to keep the service usable.

Where are my files processed?

Files are uploaded to the server for processing with FFmpeg. They are not processed exclusively in your browser.

When are files deleted?

Downloads expire after 60 minutes from upload. Automatic cleanup removes original and converted files after expiry; the cleanup schedule runs every minute when configured.

Will converting improve the sound quality?

Changing a format or increasing a bitrate cannot restore information lost in the original file. Keep your original when editing or archiving.