Strange name. Great software.
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! You can rapidly export or batch convert files to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.
Read on or just download and start editing now!
Fission 2.2.5
Released September 17, 2015
For Mac OS X 10.9 or higher
Read the release notes
Free Download
Purchase
Before purchase, audio saved with Fission will be degraded via audio fades.
Purchase a license key for just $29.
Fission 1 user? Click to upgrade to Fission 2.
Just used Fission to split a recent Audio Hijack Pro recording into two parts, so that I can keep the best part. Brilliant!
—Leo J.
"Fission 2.0 is out" -@rogueamoeba "My money, take it." -Me "Do you want a free trial first?" -@rogueamoeba "Nope." -Me
—TJ L.
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Need to record audio from a mic or an application? Try out Audio Hijack. Save big with the Audio Hijack + Fission bundle in our store!