Annex

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Mirror	See and use another computer's screen on this one.
Extend display	Make this computer a second screen for the other one: drag windows onto it like a real monitor.
Control (optional)	Use this computer's mouse and keyboard on the other one. Off by default, allowed per device.

Install

One command; it downloads the latest release and checks it is genuine before installing.

macOS (14 Sonoma or later) and Linux (Ubuntu 22.04+, Debian 12+, Raspberry Pi OS, Fedora, JetPack, x86_64 or arm64), in Terminal:

curl -fsSL https://raw.githubusercontent.com/NRanjan-17/Annex/main/scripts/install.sh | sh

Windows (10 version 2004 or 11, x64 or ARM), in PowerShell:

irm https://raw.githubusercontent.com/NRanjan-17/Annex/main/scripts/install.ps1 | iex

Or download the newest version directly (click to download):

System	Download
macOS 14 or later	Annex for Mac (.dmg, Apple silicon and Intel): open it, drag Annex to Applications
Windows 10 or 11	x64 · ARM64 (setup .exe)
Ubuntu, Debian, Raspberry Pi OS, JetPack	.deb x86_64 · .deb arm64, then sudo apt install ./Annex-linux-*.deb
Fedora, RHEL, openSUSE	.rpm x86_64 · .rpm arm64, then sudo dnf install ./Annex-linux-*.rpm
Other Linux	.tar.gz x86_64 · .tar.gz arm64: unpack and run bin/annex

Older versions and checksums: all releases.

Linux packages start with the release after 0.2.0. Mac and Windows keep themselves up to date. Step-by-step notes, permissions and what each check does: docs/GUIDE.md.

Quick start

1. Open Annex on both computers, on the same network (or joined by a cable). Each shows the other under Nearby within a few seconds.
2. On the computer whose screen you want to use: Share → Start Sharing.
3. On the other: pick it under Nearby, then Show its screen here or Extend display.
4. The first time only, type the 6-digit PIN the sharing computer shows.

To leave, press Esc, or ⌃⌥⇧Q (Mac) / Ctrl+Alt+Shift+Q (Windows, Linux) while controlling the other computer. Not listed under Nearby? Use Connect by address.

Downloads

More

• Guide: every feature, cables and Wi-Fi, a computer with no one at its screen, uninstalling, troubleshooting.
• Security: TLS 1.3 with mutual authentication, PIN pairing, signed updates. On your own network nothing leaves it. Over the internet (opt-in, with a code), the connection is direct when the two networks allow it, else through an encrypted relay that can't read it (limits).
• Linux · Building from source · Protocol · Roadmap

Found a bug? Annex always keeps a log, annex.log (Settings → Developer → Log file). It stays on your computer; Annex never sends it anywhere. Attach it to an issue.

Made by Nalinish Ranjan and Saidev Dhal. MIT licensed: see LICENSE.