Shadow on a Mac

A Windows PC in the cloud, smooth on your Mac.

Shadow streams a whole Windows PC to a Mac app for Intel and Apple silicon, or to a Chromium browser. Shadow recommends at least 15 Mbps and Ethernet or 5 GHz Wi-Fi. Kilobat watches the stream while you play or work and names what on the Mac gets in its way.

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$ brew install seifip/kilobat/kilobat

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Shadow PC2 h 3 min · 31 Mbps

Ping22 msJitter2 msBitrate31 MbpsData28 GB

Smooth

Smooth session. Nothing on this Mac got in the way.

Internet speed

What Shadow says as of November 2026. Shadow doesn’t publish speeds per resolution or data per hour.

Speed	A connection of at least 15 Mbit/s is recommended; a stable 15 Mbps is enough to get started, and 4K needs more.
Wi-Fi	Ethernet or a 5 GHz Wi-Fi network for the best performance.
At that rate for an hour	A stream at 15 Mbps for a whole hour moves about 6.8 GB; at 30 Mbps, about 14 GB.
Resolution	Neo Lite and Power Lite stream at 1440p, Neo up to 1440p and above, and Power up to 5K, by Shadow’s plan pages.
Datacenters	Dunkerque and Strasbourg in France, Frankfurt, Montréal, Washington DC and Portland, on Shadow’s status page. You pick the country and datacenter when you subscribe.

Playing on a Mac

The Mac app needs macOS 10.15 or later, with one download for Intel Macs and one for Apple silicon.
In a browser, open pc.shadow.tech in a Chromium-based browser such as Chrome or Edge, with nothing to install.
Use Ethernet or 5 GHz Wi-Fi, as Shadow recommends.
Pause AirDrop and background uploads before a long session. Kilobat flags both, pauses AirDrop in one click, and with Pro can hold supported sync apps.

How Kilobat helps

Hours-long sessions, every stutter accounted for.

Kilobat notices Shadow in its Mac app by the app itself, over UDP or TCP, and at pc.shadow.tech once the browser is talking to Shadow while its stream comes in. While it runs, it shows the ping, jitter, loss, the stream’s bitrate and data, and flags AirDrop, 2.4 GHz, a weak signal and busy apps as they happen.

One click pauses AirDrop and, with Pro, holds sync apps until the session ends, for three hours at most.
On a hotspot it shows the data an hour, where a long session is heading and when your budget runs out.
Afterwards a report says when it stuttered and what was going on.

Questions

Does Shadow work on a Mac?

Yes. The Shadow PC app runs on macOS 10.15 or later, with separate downloads for Intel and Apple silicon, and pc.shadow.tech plays in a Chromium-based browser.

What internet speed does Shadow need?

Shadow recommends at least 15 Mbit/s, over Ethernet or 5 GHz Wi-Fi, and more for 4K.

How much data does Shadow use?

Shadow doesn’t publish a figure. A stream at 15 Mbps for a whole hour would move about 6.8 GB. Kilobat measures what your own sessions use.

Where are Shadow’s datacenters?

Shadow’s status page lists Dunkerque, Strasbourg, Frankfurt, Montréal, Washington DC and Portland.

Sources

Checked on 2 November 2026.

Next session, no mystery stutters.