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BlackHole vs JACK Audio Connection Kit: catalog facts
BlackHole	JACK Audio Connection Kit
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.
macOS	Linux, macOS, Windows
Provides virtual audio input and output channels Works with macOS audio routing	Routes audio between compatible applications Supports low-latency production workflows
Requires configuration in the participating applications or Audio MIDI Setup.	Requires compatible applications and careful device configuration.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
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.