About Free Merge MP3

You arrange clips, trim them, choose a join or a crossfade, and save MP3, M4A, WAV, FLAC, OGG, or Opus. The current release is 8.1.0 for Windows 10 and Windows 11, 64-bit.

It does not record, mix on a multitrack timeline, remove noise, download online video, or burn discs. Those are different jobs.