Audio Compress
Compress audio to a specified size or bitrate to reduce file size for easy sharing. All processing happens locally in your browser—no files are uploaded to servers, completely free.
🗜️
Click to select, or drag an audio file here
Compress to a target size or bitrate to shrink the audio · Processed entirely on your device, never uploaded
FAQ
Can I compress to a specific size?
Yes. Select "Compress to specific size" and enter the target MB/KB; the tool will estimate the appropriate bitrate based on duration. The result is approximate, so actual size may vary slightly.
How to choose bitrate?
64–96 kbps is sufficient for speech; music should be 128 kbps or higher. M4A (AAC) typically sounds clearer than MP3 at the same bitrate.
Will sound quality be lost?
Lossy compression removes some detail; lower bitrates mean smaller files but more quality loss. Balance based on your needs.
Are files uploaded?
No. All compression is done entirely in your browser—audio never leaves your device.
Explore more AI tools and products