OmniMP3 is software to convert lossy and lossless audio formats to the most popular audio format: MP3.
FLAC - Free Lossless Audio Codec,
ALAC - Apple Lossless Audio Codec,
WMA - Windows Media Audio (Lossless),
WAV - Waveform Audio File Format,
APE - Monkey's Audio,
WV - WavPack,
WMA - Windows Media Audio (Lossy),
AAC - Advanced Audio Coding
Since many audio formats exist (FLAC, OGG, ALAC, ACC, APE, etc) and most cannot be played on some devices, you may need to convert such files to MP3 so you can play them everywhere.
OmniMP3 does not contain malware or any harmful or unpleasant extras like ads or unwanted bundled sponsored software.