Audio Compressor

Compress audio files online — reduce size without losing quality

Reduce audio file sizes while maintaining good sound quality. Perfect for podcasts, music, and voice recordings that need to be shared.

How It Works

Upload your audio file

Choose target bitrate or quality level

Download the compressed audio

Compress podcast episodes for hosting platforms

Reduce audio file size for email attachments

Compress music for mobile apps

Shrink voice recording files for storage

What formats are supported?

MP3, WAV, OGG, FLAC, AAC, M4A, and WMA.

What bitrate should I compress to?

128 kbps is fine for speech/podcasts. 192 kbps is good for music. Lower than 128 kbps starts to sound noticeably compressed.

How much can audio be compressed?

WAV files can be compressed 80–90% by converting to MP3 at 192 kbps. Existing MP3s can typically be reduced 20–40% by lowering bitrate.

Free to use. No signup required. Runs in your browser.