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Fission can crop and trim audio, paste in or join files, or just rapidly split one long file into many. It's streamlined for fast editing. Plus, it works without the quality loss caused by other editors, so you can get perfect quality audio even when editing MP3 and AAC files.

If you need to convert formats, Fission can do that too! You can rapidly export or batch convert files to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.

Key Features
  • Edit MP3, AAC, Apple Lossless, and AIFF files with no quality loss
  • Quickly split a long audio file into smaller files
  • more...

What's New

Version 2.2.5:

Note: Now requires OS X 10.9 or later.

  • Fission now requires OS X 10.9 (Mavericks) or higher. If you're still on 10.8 (or earlier), see Related Links.
  • This version improves file support for several different file types. First up, loading of AAC and Apple Lossless is much faster.
  • In addition, support for Apple Lossless files has been improved, more...


  • OS X 10.9 or later

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4 44


Current Version (2.x)


Downloads 94,514
Version Downloads 1,739
License Shareware
Date 18 Sep 2015
Platform Intel 64 / OS X
Price $29.00
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