Fission

What is Fission?

Fast, lossless audio editing

With Fission, audio editing is no longer a chore. You can merge files, trim and trim audio, and quickly split long files. Fission is simplified for quick editing and works without the loss of quality that other audio editors cause.

If you need to convert between audio formats, Fission can do that too. Quickly export or convert batch files to MP3, AAC, Apple Lossless, FLAC, AIFF and WAV formats. Fission covers all your audio needs. Finally, simple audio editing has arrived.

Simplified audio editing

Fade, crop, crop, and edit metadata

Fission offers all the standard audio editing options you need at your fingertips. Unlike overly complicated competitors, there is no confusion or bloat.

Edit audio without loss of quality

Fission never causes quality loss when it is edited, even in MP3 and AAC formats. It's like magic, and it's something only Fission offers!

Batch conversion between formats

Fission's batch converter allows you to convert dozens of files at once, to any of the most popular formats: MP3, AAC, Apple Lossless, FLAC, AIFF and WAV.

Many other great features

Cross-format conversions

Any file that Fission can open can be saved directly to MP3, AAC, Apple Lossless, FLAC, AIFF or WAV.

AAC and MP3 files in chapters

Make enhanced podcasts with AAC or MP3 chapters using Fission. Your listeners will love you for it!

Quick audio removal

Cutting the audio couldn't be easier. Just select and crop!

Full FLAC support

If you need to edit FLAC files, look no further than Fission.

File join

With a simple drag and drop or copy and paste, you can merge two or more files into one.

Smart Division

Automatically debt files based on silence. It is perfect for LP and DVD recordings.

Inline gain adjustment

Highlight an audio section and adjust the gain with the Gain slider.

Suggestion sheet support

Split the files using cue sheets, or export your edits to a cue sheet file.

Disappear

Zoom in and out of audio to create smooth transitions.

Why be normal?

Give audio files a constant volume level with the normalize function.

Split points

With Fission Split Points, you can split and save to get multiple files.

Major uses for fission

Create ringtones for iPhone

Edit the audio down and choose "Save as iPhone ringtone" to get custom tones for all your iOS devices.

Share on SoundCloud

Once you're done editing a file, you can publish it directly to a SoundCloud account. Sharing is easy!

Edit iTunes downloads

If you buy songs from the iTunes Music Store, Fission can help you edit them losslessly.

Edit podcasts

Record a podcast with Audio Hijack and then edit it in Fission.

Remove ads

Record a web stream and trim unwanted ads and other bits.

Split LPs

Take a long file and split it into individual songs with Smart Split.

System Requirements

Fission 2.5.0

for MacOS 10.12 or higher