Audio Compressor
Reduce the file size of your audio files while maintaining quality. Perfect for email and web.
appsRelated Tools
Compress MP3 Online
Reduce audio file size for free
Reduce audio file size • 100% Free • Client-side processing
✨ Compress audio files while maintaining quality
160x600
Reduce File Size
Shrink large audio files by up to 70% while maintaining clear sound quality.
Adjustable Bitrate
Choose your preferred quality level from 64kbps to 320kbps for perfect balance.
Private & Secure
Compression happens locally in your browser. Your files never leave your device.
Works Offline
Once loaded, compress unlimited files without internet connection.
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How to Compress Audio Online
Upload Your Audio
Drag and drop or click to select your MP3, WAV, M4A, or other audio file.
Select Bitrate
Choose the output quality. Lower bitrate = smaller file, higher = better quality.
Compress
Click the button and wait for processing to complete.
Download
Download your compressed audio file instantly.
Why Compress Audio Files?
Large audio files can be difficult to share via email, messaging apps, or upload to websites. Our audio compressor reduces file sizes significantly while maintaining good audio quality, making it easier to share and store your music and recordings.
Frequently Asked Questions
What audio formats can I compress?expand_more
Our compressor supports MP3, WAV, AAC, OGG, FLAC, M4A, and most other audio formats. Upload any audio file and we'll handle it.
How much can I reduce file size?expand_more
Compression typically reduces file size by 50-80%. Using 128kbps instead of 320kbps can reduce size by 60% with minimal quality loss.
Are my files uploaded anywhere?expand_more
No! All compression happens in your browser. Your audio files never leave your device—100% private and secure.
What bitrate should I choose?expand_more
320kbps for highest quality, 192kbps for good balance, 128kbps for smaller files. For spoken content, 64kbps works well.
Will I notice quality loss?expand_more
At 192kbps or higher, most people cannot hear any difference. Lower bitrates may reduce quality but result in much smaller files.