Record a Slack huddle on your Mac
Both sides, in one file, without a virtual audio driver.
Slack will not do it for you
Huddles have no record button. They are built to be ephemeral — when a huddle ends, the conversation is gone, and the thread Slack leaves behind holds links and notes, not audio. Nobody else in the huddle can recover it for you afterwards either. If a huddle is worth keeping, the recording has to happen on your own machine, while it happens.
Why the obvious tools fail
The two answers you will find elsewhere both disappoint. QuickTime records an input device — your microphone — so the file it produces contains you and silence where your colleagues were: their voices are audio Slack plays, not audio your Mac hears. The classic fix is BlackHole, a virtual audio driver you install and route Slack's output through — it works, and it is also a system audio device you have to install, wire up in Audio MIDI Setup, and remember to unwire. For a huddle that starts in the next thirty seconds, neither is a real answer.
How RecordCue does it
macOS does expose the sound another app is playing — through the screen capture interface, which is why RecordCue asks for Screen Recording permission even for audio. No driver, no rerouting:
- Install RecordCueand leave it in the menu bar. Slack's desktop app is one of the services it knows out of the box.
- Join a huddle. The moment Slack opens your microphone, a cue appears: Slack huddle, with the recording choices on it.
- Press Audio only. Your microphone and the huddle's audio are mixed into one ordinary .m4a as it records — headphones change nothing, because the other side is taken from the audio itself, not from a speaker.
When you leave the huddle, RecordCue notices and asks whether to stop. The file lands in ~/Movies/RecordCue/Slack/, named with the date, and can be transcribed on the device — each passage marked as you, them, or both. Nothing is uploaded; there is no account and no bot, and nothing appears inside the huddle itself.
If your huddles live in the browser rather than the desktop app, RecordCue watches browser calls too, and you can add your own rule by window title for anything it misses.
Tell people first
Nothing announces the recording for you, which is exactly why you should: in many places you must tell the other people, and in some you need their agreement. A sentence at the start of the huddle costs nothing — the FAQ has the longer answer.
RecordCue is free on the Mac App Store (macOS 13+, Apple silicon) — every capture mode included, ten minutes per recording after a 14-day unlimited trial, one purchase to remove the limit. Related: recording a WhatsApp call, recording a FaceTime call, and how to never forget to record a meeting again.