GreenSignal

GreenSignal checks your call setup and tells you if you're ready.

by Felicity Huels

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Jul 5, 2026 Productivity

audio-check diagnostic meeting-prep video-call

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GreenSignal is a free app for macOS and Windows that checks your camera, microphone, speakers, room noise, and network before a video call. One quick check tells you if you're ready or points you to the one thing that needs attention.

Comments (3)

Katelyn Waelchi 5 days ago

saves me from that panic check right before joining

Jarvis Skiles 5 days ago

Network and mic checks pre-call. Finally shipped.

Estevan Hintz 5 days ago

probably just pings an endpoint, not real qos testing

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