peetzweg/opendisplay

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.

Productivity & self-hostedSwift#duet-display#external-display#ipad#iphone#macos

3.0 Peaking Magnitude out of 10. Star growth looks organic. Data as of September 18, 2026.

Open on Seismograph Open on GitHub

About the project

Free open-source alternative to Apple Sidecar and Duet Display: turns an iPhone, iPad or spare Mac into a true second monitor for your Mac over USB or WiFi with touch input.

Useful for

Plug in an iPhone via cable as a second monitor for a Mac laptop
Use an old iPad as an extra Retina display over WiFi
Repurpose an old 2015 Mac as an external monitor for a newer Mac

README summarized by DeepSeek V4.1 Flash. Details may be inaccurate.

Why it’s trending

24 stars so far today, about 36 expected by the end of the day.
Interest is fading: the two-day pace is 50% of the previous week and a half.
About 6 forks a day — people are taking the code.
Recent forks include notable developers: @AlexJuca (216 followers).

Stars per day

Bars are daily stars, the line is the usual pace. Red marks spike days.

Numbers

Total stars: 4,557
Stars in a day: 36
Forks: 301
Issues and pull requests: 291
Watchers: 18
Language: Swift
License: GPL-3.0
Latest release: v1.21.0 · September 18, 2026
Created: June 10, 2026
Last push: September 18, 2026

Star trust

Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.

These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.

Spotted in

September 15, 2026GitHub Trending today: #19, +229 stars
September 14, 2026GitHub Trending today: #19, +258 stars

README badge

Paste it into your README — the badge shows the current magnitude and links to this page.

[![Seismograph](https://gitnova.dev/badge/peetzweg/opendisplay.svg?lang=en)](https://gitnova.dev/en/r/peetzweg/opendisplay)

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