Convert M4R to AU online and free
1. Click "Choose Files" button and select your M4R files you would like converted.
2. Click on the “Convert to AU” button to start the conversion.
3. When the status change to “Done” click the “Download AU” button
To convert in the opposite direction, click here to convert from AU to M4R
M4R files are used to store iPhone ringtones. They are typically smaller but maintain high audio quality using similar compression to AAC. ...
AU files, developed by Sun Microsystems, are uncompressed and often used in Unix systems. Despite their age, they are still supported by some software like Audacity, though their use has declined. ...
Upload a M4R file, click "Convert", and use additional options to quickly modify its contents before downloading the final AU file after processing has completed.
Our M4R to AU converter works on Windows, Mac OS, Linux, iOS and Android systems alike - our servers automatically process each file without requiring you to install plug-ins or applications!
We guarantee 100% of the privacy and have no access to your files once uploaded/converted, making them inaccessible by anyone and completely protecting them.
