Use an iPhone, iPad, or spare Mac as a true second display for your Mac without restrictions.
Virtual Display GitHub Repositories (2026) · Open Source Tools
Discover the best Virtual Display open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
Sunshine fork: an enhanced sunshine, a self-hosted game streaming host for Moonlight with HDR10/HDR Vivid, virtual displays, advanced audio, optimized encoders, and a modern control panel.
Every display control macOS hides, in one menu bar app: sharp HiDPI/Retina scaling (no more blurry or tiny text), DDC brightness and volume, Extra Brightness past 100%, presets, virtual displays. Free and open source, a no-cost alternative to BetterDisplay and Lunar.
A virtual display manager for Linux with integrated sunshine streamer.
Candela protects your displays from OLED burn-in and wear: panel health history, a checkup for defects, and the controls macOS leaves out for external monitors (brightness, volume, contrast, custom resolutions, HiDPI scaling). Free and open source.