1. Click "Choose Files" button and select your AU files you would like converted.
2. Click on the “Convert to M4R” button to start the conversion.
3. When the status change to “Done” click the “Download M4R” button
To convert in the opposite direction, click here to convert from M4R to AU
What is an AU audio file? An AU (Sun Audio) file was originally developed by Sun Microsystems for use with their Sun Operating System and became widely popular as it became widely adopted across platforms and browsers such as SPARC, NeXT computer workstations, early websites, Unix-based platforms and Java systems. At first these files only stored representations of their native ...
M4R files are compatible with Apple iTunes and Quick Time Player. Users primarily use these files to save ringtones on their iPhone. M4R files are similar to AAC and M4A files. The files transfer seamlessly from opening on computers to phones. Users can download audio alongside the file through the iTunes store. M4R files are generally smaller, but allow users ...
Upload a AU file, click "Convert", and use additional options to quickly modify its contents before downloading the final M4R file after processing has completed.
Our AU to M4R 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.
