Fission
Fission: A focused Mac editor for quick, lossless file-level audio work. Ranked #55 of 128 in Audio Editing Software by our editors (3.9/10); pricing: Paid; best for fast lossless audio file editing.
At a glance
- Editor score3.9 / 10
- PricingPaid
- Best forFast lossless audio file editing
- Free planNo
- Paid from$35 one-time
- Founded2002 · Boston, Massachusetts, United States
- Facts checked20 Sep 2026
Where it wins
- Lossless trimming, fades, joining, splitting, and normalization
- Batch conversion across MP3, AAC, FLAC, AIFF, WAV, and Apple Lossless
- Metadata, chapters, cue sheets, and ringtone creation in one editor
Where it doesn't
- macOS only
- No audio effects
- Paid product with no time-unlimited free plan
Our verdict on Fission
Fission is a macOS audio editor for people who need to modify individual audio files quickly without re-encoding supported formats. Its focus is practical file-level work: trimming, cropping, cutting, fading, joining, normalization, metadata editing, chapter creation, and splitting recordings manually or by silence. Rogue Amoeba positions it for tasks such as podcast editing, removing commercials, and dividing LP recordings, making it a fit for concise edits rather than full production workflows.
The published plans show a $35 Fission License Key as a one-time purchase, unlocking the full version for a single user on one or more personally owned Macs. Owners of an older Fission version can purchase the Fission 2 Upgrade for $15 one time. A limited free trial is available, but Fission is not presented as a time-unlimited free plan. The pricing is easy to understand for individual Mac users, although the platform restriction makes the purchase unsuitable for Windows or other operating systems.
Fission’s strongest area is its concentrated set of file operations and format tools. It supports lossless editing for supported formats and batch conversion between MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV. Metadata tools cover ID3 tags, lyrics, and artwork, while chapterized AAC and MP3 creation, cue sheet import and export, gain adjustment, and iPhone ringtone creation extend its usefulness beyond basic cutting. The trade-off is a narrow scope: Rogue Amoeba states that Fission does not support audio effects. Choose it for fast, focused Mac audio-file editing; choose another tool if effects or a broader production environment are central requirements.
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Fission pricing
All 2 Fission plans and prices →
Fission fact sheet
| Free plan | No |
|---|---|
| Paid from | $35 one-time |
| Supported platforms | macOS |
| Multitrack editing | Not verified |
| MIDI sequencing | Not verified |
| Third-party plugins | Not verified |
| Noise reduction | Not verified |
| Video synchronization | Not verified |
| Cloud collaboration | Not verified |
| Money-back guarantee | 14 days |
| Deployment | Desktop |
| Platforms | macOS |
| Support | Email, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Paid (source) |
| Website | rogueamoeba.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Fission
- Pro ToolsA broad workstation for studios spanning music production, audio post, and immersive mixing.9.4
- REAPERA flexible desktop DAW with broad audio and MIDI tools and a one-time license from $60.9.3
- Logic ProA broad audio and MIDI workstation for Apple-based producers and video composers.9.2
See all Fission alternatives →
Also Ranked In
Fission is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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