If you’ve ever tried to record internal audio on a Mac—grabbing sound from a web browser, a Zoom call, or a game—you’ve likely heard the name . For over a decade, this tiny, open-source kernel extension was the gold standard for routing audio between applications.
The original Soundflower project was developed by Rogue Amoeba and later open-sourced by Matt Ingalls. However, . Modern versions of macOS (Catalina and later) have strict security policies that block many kexts by default. soundflower download
In your recording software (e.g., QuickTime), set the Microphone Input to Soundflower (2ch) . If you’ve ever tried to record internal audio
Soundflower is a free, open-source software that allows users to route audio from one application to another. It is commonly used for tasks such as recording audio from one application and playing it in another. However,
Because the original Soundflower lacked a GUI, many users pair it with (a menu bar controller). Some modern installers bundle both. Only download these from trusted developers (e.g., Rogue Amoeba's historical archive).
Once installed, here is the classic workflow:
After rebooting, go to System Settings > Sound > Output . You should see Soundflower (2ch) and Soundflower (64ch) in the list. How to Use Soundflower (Routing Basics)