A low-latency, open-source software KVM. Move one keyboard & mouse — plus the clipboard and files — between your macOS and Windows machines over the LAN, end-to-end encrypted, with the lowest input lag we can squeeze out.
Development status: ShareClick is under active development and may not work reliably on every macOS and Windows setup. If you try it, please report bugs, suggest improvements, or contribute a fix.
A free alternative to Synergy, ShareMouse, Barrier and Input Leap, the Mac-capable answer to Mouse Without Borders, and effectively Universal Control for Windows.
- One keyboard & mouse — push your cursor across the screen edge to control the other machine.
- Shared clipboard — copy on one machine, paste on the other (text + images).
- Drag-and-drop files — reliable, chunked transfer between machines.
- End-to-end encrypted — X25519 + a shared passphrase + ChaCha20-Poly1305. LAN-only, no cloud, no accounts.
- Latency-first — dedicated UDP input path, ~6 µs one-way transport overhead.
macOS (Homebrew)
brew install --cask phun333/tap/shareclickWindows (Scoop)
scoop install https://raw.githubusercontent.com/phun333/ShareClick/main/packaging/scoop/shareclick.jsonOr grab the installer from the Releases page.
Note: builds are unsigned (no paid Apple/Microsoft certificate), so your OS shows a one-time warning. Follow the installation docs to review and allow the app.
On both machines: open ShareClick (menu-bar on macOS, system tray on Windows) → Settings & Monitor Manager → set the same passphrase and your screen layout → save. Then push your mouse into the shared screen edge to jump across; copy/paste and files sync automatically.
Full walkthrough in the Quickstart.
| Tool | License | Mouse/KB | Clipboard | Files |
|---|---|---|---|---|
| ShareMouse | Paid | Yes | Yes | Yes |
| Synergy | Paid | Yes | Yes | Yes |
| Deskflow | GPLv2 | Yes | Yes | Partial |
| Input Leap | GPLv2 | Yes | Yes | Partial |
| Barrier | Open (archived) | Yes | Yes | No |
| Lan Mouse | Open | Yes | No | No |
| ShareClick | MIT/Apache | Yes | Yes | Yes |
See the full comparisons.
Everything lives in the docs site — install, usage, configuration, troubleshooting, architecture, wire protocol, security model, and contributor guides.
Building from source? See the development guide.
The Mintlify source lives in mintlify/.
PRs welcome! Read CONTRIBUTING.md first — we use
Conventional Commits, and a one-time
./scripts/setup-hooks.sh installs git hooks that keep CI green.
Dual-licensed under MIT or Apache-2.0 — your choice.