peetzweg/opendisplay
Emerging#1 in Open sourceprovisionalmedium confidence
Free, open-source Sidecar/Duet alternative — use your iPhone, iPad or Mac as a true second monitor for your primary Mac over USB or WiFi. Low latency H.264, Retina HiDPI, touch input.Why it ranks #1
No written reasoning for this entry yet — its position comes from aggregated source rankings alone.
Here is the catch
Community issue (15 comments): What is the oldest iOS version we can support?
Community issue (11 comments): sequoia intel mac connected with opendisplay but no picture on ipad
Pricing
Not price-checked by hand. Confirm on the vendor’s own page before you budget.
Key features
🖥️ True display extension — macOS treats the device as a real second🔌 USB-wired for lowest latency — streams over the Lightning/USB-C📶 WiFi with zero config — the iPhone advertises itself via Bonjour🔍 Retina / HiDPI — the virtual display matches the device panel
Signals
Observations, not reasons. These say something resonated; they never say it is good.- #19 on GitHub Trending
- +229 stars today
- 3,930 total stars
- 268 forks
- last pushed 2026-09-15