Easy-Virtual-Display

Easy Virtual Display

English · 简体中文

Add, remove, and manage virtual monitors on Windows from a clean native desktop app — no command line, no Parsec account.

Easy Virtual Display is a Windows desktop application for installing and driving a virtual display driver through a friendly UI. A virtual display behaves like a real monitor that isn't physically attached to your machine — perfect for headless servers and GPU rigs, remote desktop and streaming, giving a laptop extra screen real estate, or testing multi-monitor layouts.

It builds on the early concept of nomi-san/parsec-vdd.

Prebuilt installers are available on the Releases page.

Highlights

• One-click driver install — the driver is bundled; install it with a single UAC-elevated click, no separate download.
• Add & remove displays anywhere — from the main window or the system tray, up to 8 virtual displays.
• Per-display control — set resolution, refresh rate, and orientation (landscape / portrait / flipped) for each virtual monitor.
• Custom resolution modes — define up to 5 custom modes the driver should advertise.
• GPU targeting — pin virtual displays to a specific parent GPU (Auto / NVIDIA / AMD).
• At-a-glance status — driver state, driver version, max displays, and active display count.
• Smart behaviors — launch on login, close-to-tray, start minimized, keep screen on while a display is active, and a fallback display that auto-appears when your primary monitor disconnects.
• Polished UX — light / dark / system themes and an English / 简体中文 interface.

How it works

Easy Virtual Display is split into three cooperating layers:

Layer Tech Responsibility Shell Tauri 2 (Rust) + system WebView2 Window, system tray, OS integrations (autostart, keep-awake, fallback display), driver lifecycle, and privilege elevation. Renderer React 19 + TypeScript (Vite) The desktop UI — TanStack Query, react-hook-form + Zod, Tailwind CSS, Radix primitives, and i18next. Native host .NET (C#) Talks to the virtual display driver over DeviceIoControl / SetupAPI / CfgMgr32 and exposes it to the shell via a stdio JSON-RPC protocol.

Shared TypeScript contracts in src/shared keep the renderer and shell in lock-step. Privileged actions (install/uninstall the driver, write custom modes) are routed through a dedicated elevated host invocation so the main app never runs with more rights than it needs.

Project layout

src/                 React renderer + shared TypeScript contracts
  renderer/          UI components, hooks, i18n
  shared/            contracts, IPC, locales (en, zh-CN)
src-tauri/           Tauri (Rust) shell — commands, tray, OS boundaries
native/              .NET host + virtual display control core
  EasyVirtualDisplay.Host/   stdio JSON-RPC host & admin CLI
  EasyVirtualDisplay.Vdd/    driver interop (DeviceIoControl / SetupAPI)
vendor/parsec-vdd/   bundled virtual display driver installer

Getting started

Prerequisites

• Windows (the driver and packaging are Windows-only)
• Node.js and npm
• Rust toolchain (stable) — for the Tauri shell
• .NET SDK — for the native host

Install dependencies

npm install

Run in development

npm run tauri:dev

Checks

npm run typecheck
npm run test

Build the Windows installer

npm run tauri:build

This publishes the .NET host and produces an NSIS installer that bundles the renderer, the Rust shell, and the driver.

Repository

• GitHub: https://github.com/KtzeAbyss/Easy-Virtual-Display