GitHub - SevenbytesSoftware/SevenConverter: Seven Converter | Free Converter for Video and Audio files | Simple tool for converting media files into various formats.
Fast and Simple Way to Bulk Convert MP4 to MP3
MP4 to MP3 Converter [Free & Online] – Movavi Video Converter
Xilisoft MP4 to MP3 Converter: Convert WMV, AVI, RM, MP4 to MP3