Phospane

Your other computer, right here.

Phospane streams your Mac or Windows PC to your other computers, phones and TV, with sound, keyboard, mouse and gamepads. Fast enough to work and play on, private by design, and free.

Download for Mac Download for Windows

macOS on Apple Silicon · Windows 10/11 (64-bit) · No account needed

~26 msscreen to screen, measured over Tailscale
HEVC 4:4:4hardware encoding, sharp text
Every packetencrypted with ChaCha20-Poly1305
Mac ⇄ Windowseither one shares, either one watches

Everything a remote desktop should do

Built for using a computer in the other room, or across the city, as if you were sitting in front of it.

Fast

Hardware H.264 and HEVC on both ends and a protocol tuned for latency: around 26 ms from the host's screen to yours.

Mac ⇄ Windows keyboard

⌘ and Ctrl swap so shortcuts feel native on either side. Game mode passes every key through unchanged.

Sound that keeps up

System audio with a 20 ms buffer. It follows your default output device, downmixes surround and covers lost packets.

Private by design

Computers pair once with a PIN. Every packet is encrypted end to end, and the stream goes straight between your devices, not through a Phospane server.

From anywhere

Built-in Tailscale: sign in once and reach your computers from any network, with no separate VPN app and no ports to open.

Gamepads

Controllers on the computer you're watching from work on the shared one (Windows hosts).

Also: multiple monitors, virtual screens at the size of your window, clipboard sync, the host's own cursor, and a stats overlay when you want the numbers.

Set up in a minute

No accounts, no port forwarding. Your computers find each other on the same network.

Install Phospane on both computers

The one you want to use, and the one you'll use it from.

Turn on sharing

On the computer you want to reach. Phospane waits in the menu bar or tray, and can start when you log in.

Connect and pair

Pick the computer and type the PIN it shows. Only needed the first time.

Phones, tablets and TV too

A computer that shares with Phospane also speaks Moonlight's protocol, so the free Moonlight app works on devices Phospane doesn't run on.

  • iPhone, iPadMoonlight from the App Store
  • AndroidMoonlight from Google Play
  • Apple TVMoonlight from the App Store
  • Android TVMoonlight from Google Play

How

Open Moonlight on the same network and the computer shows up by itself. Tap it and type the PIN Moonlight shows into Phospane.

Away from home: install the Tailscale app on the phone, sign in to the same account as Phospane's built-in Tailscale, and add the computer in Moonlight by its phospane-… address.

Download Phospane

Free. Once it's installed, Phospane keeps itself up to date.

macOS

Apple Silicon (M1 and later) Download .dmg
  1. Open the .dmg and drag Phospane to Applications.
  2. The first time, macOS may say it can't check the app: open System Settings › Privacy & Security and click Open Anyway.
  3. To share this Mac, allow Screen Recording and Accessibility when Phospane asks.

Windows

Windows 10 and 11, 64-bit Download installer
  1. Run the installer (it asks for admin once, to set up the firewall rules).
  2. If SmartScreen appears, click More info › Run anyway.

All versions and release notes: GitHub Releases