Audio merger for Windows

Free Merge MP3 is a joiner, not a multitrack mixer and not a one-file converter. Start Merge stays disabled until the list has two clips.

Smart mode is the default. It copies compatible streams when nothing needs to be changed, and it encodes when you trim, crossfade, change the rate, or mix formats. Lossless Copy refuses the job if a copy is not possible. Studio always encodes.