cutandjoin

Cjam is a frame-based MP3 editor that works without decoding or re-encoding.

It supports batch editing of multiple files using both the GUI and scripting.

Editing is performed virtually by referencing the original MP3 data, making operations very fast.

The latest release adds clipboard-based integration with mp3DirectCut and REAPER. These integrations also work without creating temporary files.

GitHub makes binary distribution much easier for me. For example, Cjam is listed on several freeware sites and GitHub helps streamline update notifications and integration with them.

thanks

Official site: https://cjmapp.net

Cjam is scriptable, here’s an example:

https://forum.cjmapp.net/viewtopic.php?t=31

Cjam includes features that don’t exist in other tools, and it’s freeware.

It’s a strong advantage for individual developers like me to distribute binaries on a trusted platform without any hosting cost.

Actually, I posted before using the main site link, and HN doesn’t allow posting the same URL twice, so I used the GitHub link this time.

https://news.ycombinator.com/item?id=43883180

And yes, Cjam is quite similar to mp3DirectCut. It’s like managing several mdc instances together in one list.

I use MP3 a lot myself, so I built this tool around it.

Cjam is designed in a way that makes it easy to adapt to other small, lossy formats as well, so it has potential to go beyond MP3 in the future.

I rethought MP3 editing without decoding/re-encoding for today’s hardware.

Existing tools tend to focus on one action at a time, like splitting or joining files. But Cjam lets you define multiple actions across multiple files at once using scripts. So it makes it easier to create and share more complex editing workflows.

You can find some example scripts on the forum: https://forum.cjmapp.net/viewforum.php?f=9

Software that my parents or yours can use is definitely a good thing. Not everyone needs to chase the cutting edge.

Thanks for pointing it out. I've updated the license file accordingly.

Thanks for all the comments. This is a tool for editing MP3 files at the frame level. It’s similar to mp3DirectCut and mp3splt in some ways, but today’s hardware enables more advanced editing of lossy audio. Any feedback is appreciated.

I plan to implement aac support. Cjam is specifically designed for directly editing lossy audio formats.