No uploads
Your media stays on your device.
Audio tools
Compress Audio
Reduce MP3, WAV and M4A file sizes locally in your browser.
WAVM4AMP3
MP3
Select a WAV file
Before—
Estimated time—
After—
Estimated output size—
Mobile device noticeLarge files can use substantial memory and warm your device. Keep this tab open.
Processed on your deviceYour file is never uploaded to a server.
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Supported files and limits
WAV, M4A, or MP4 input according to the selected tool. Maximum 200 MB. Codec support depends on the source file.
Why ConvertFiles24
Private browser conversion
Choose quality
Pick the MP3 bitrate that suits your needs.
Works in your browser
No app or account is required.