Audacity can do most of the audio editing functions of Audio Hijack. OBS can replicate the audio routing (though not as smoothly) though I'm not too familiar w

Audacity can do most of the audio editing functions of Audio Hijack. OBS can replicate the audio routing (though not as smoothly) though I'm not too familiar with its audio processing capabilities. I mostly see OBS and Audio Hijack as complementary products. That said, Audio Hijack is so good for routing and processing audio that it's not even a competition, AH all day. I've done so much mischief and tinkering with AH just because it's so easy. You can reroute audio between applications, fiddle with L/R channels and filtering, and pipe it through to others, all on the fly. I've used it for everything from being a DJ in zoom calls, to setting up presentation audio, to setting up a virtual sound board that repeated audio snippets I collected in real time from the conversation, to connecting a facetime audio call from one teammate into a zoom meeting. There's so much flexibility and setting up the workflows is a breeze. AH hurdles the bar IMO.