NBFree WMA to MP3 Converter is an easy-to-use tool to convert wma files to mp3 files. Use this wma to mp3 converting tool to convert wma to most popular mp3 format supported by all mp3 players. - convert batches of wma files to mp3 files - preview wma before conversion - change output mp3 frequency, bitrate, channel, quality - auto rename, skip or overwrite when file exists