Open the software, and on the Converter section, click on the Add F iles icon or the plus sign to browse and import the AMR files. Step 1 Add MP3 files to Wondershare UniConverter. Steps on how to convert MP3 to AMR using Wondershare UniConverter. The process is quick and simple with the option to edit the file parameters. Working on all your latest Windows and Mac systems, this professional software can batch convert your MP3 and other files in almost all formats including AMR. If you are searching for the best MP3 to AMR converter, we recommended Wondershare UniConverter (originally Wondershare Video Converter Ultimate). It is important to choose the right conversion tool to get your task done quickly and efficiently. The best MP3 to AMR converter for Mac and Windows Which file format gives the best audio quality, MP3 or AMR Other 4 recommended MP3 to AMR converters online There are several MP3 to AMR converters available, and we have shortlisted some of the popular ones as below. To get the conversion task done in a hassle-free manner, a good conversion tool must be used. Though MP3 is a widely used audio format, you might need your audio files in AMR for device playback, editing, and other uses in many situations.