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Crop and trim audio, paste in or join files, or just rapidly split one long file into many. Fission is 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, with simple export or batch conversion to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.

Don't forget ringtones! Use Fission to make great custom ringtones for all your contacts.

Fission makes audio editing fast and easy - get it now!

What's New

New in Fission 2.4.5:
* Enhancement: Loading times have been improved for several audio formats.

* Enhancement: Fission now supports very long AAC files.

* Bug Fix: A bug in transcoding the final samples of a file to AAC has been corrected.

* Bug Fix: An issue where Fission would erroneously complain about files changing on disk has been corrected.