Open-source cross-platform IP-KVM client that enables keyboard/mouse control and screen display of a remote computer via USB HDMI capture card and CH9329 HID chip.
- Send keyboard/mouse commands to the target computer via CH9329 serial protocol
- Capture and display the target computer screen in real-time via USB HDMI capture card (UVC protocol)
- Support both absolute and relative mouse coordinate modes
- Quick action buttons (Ctrl+Alt+Del, PrintScreen, etc.)
- TOML configuration file format
- Cross-platform support for macOS, Windows, and Linux
- Backend: Rust + Tauri v2
- Frontend: React + TypeScript + Tailwind CSS
- Serial Communication: serialport crate
- Video Streaming: Local MJPEG HTTP stream (127.0.0.1:9527)
Host Computer (running LinkKVM)
|
+-- USB --- HDMI Capture Card ---- HDMI ---- Target Computer (video output)
|
+-- USB --- CH340G (USB-to-TTL) -- UART ---- CH9329 -- USB -- Target Computer (keyboard/mouse input)
| Component | Model | Reference Price |
|---|---|---|
| HDMI Capture Card | MS2109 chipset | ~$2 |
| USB HID Chip | CH9329 | ~$0.5 |
| USB to TTL | CH340G | ~$0.5 |
| Dupont Wires | - | ~$0.5 |
This is caused by macOS Gatekeeper blocking unsigned applications. Since the CI-built app is not signed with an Apple Developer certificate, macOS treats it as potentially unsafe.
Solution 1: Remove the quarantine attribute via Terminal:
xattr -cr /Applications/LinkKVM.appSolution 2: Right-click the app → select Open → click Open in the dialog (instead of double-clicking).
See CHANGELOG.md for a full history of changes.
- Remote Screen Capture — Real-time display of target computer screen via USB HDMI capture card (UVC/MJPEG)
- Keyboard Control — Full keyboard input forwarding to target computer via CH9329 serial HID protocol
- Mouse Control — Support both absolute and relative mouse coordinate modes with movement, click, and scroll
- Serial Port Management — Auto-detect serial ports, configurable baud rate, connection status monitoring
- Quick Actions — One-click Ctrl+Alt+Del, PrintScreen, and other common key combinations
- CH9329 Configuration — Read/write chip parameters, factory reset, firmware version detection
- Cross-Platform — Native desktop apps for macOS (.dmg), Windows (.exe), and Linux (.deb)
- TOML Configuration — Persistent settings for serial port, video, and mouse preferences
We welcome your participation in the following ways:
- Report Bugs — Submit an Issue describing the problem you encountered
- Suggest Features — Submit an Issue with your feature ideas
- 🔧 Submit a Pull Request — We carefully review the approach behind every PR for reference, but the team implements fixes independently. External PRs will not be merged directly.
MIT License