Compare software

JACK Audio Connection Kit vs BlackHole: catalog facts
JACK Audio Connection Kit	BlackHole
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free and open source. Hosting, hardware and any external services are separate.
Linux, macOS, Windows	macOS
Routes audio between compatible applications Supports low-latency production workflows	Provides virtual audio input and output channels Works with macOS audio routing
Requires compatible applications and careful device configuration.	Requires configuration in the participating applications or Audio MIDI Setup.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.