sahilmishra0012

Open-source macOS display manager. DDC brightness/contrast/volume, resolution switching, window tiling, night shift, HDR, profiles, CLI. Free alternative to BetterDisplay.

11
0
100% credibility
Found Apr 03, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Swift
AI Summary

OpenDisplay is an open-source macOS menu bar app for controlling external displays' brightness, contrast, volume, resolution, input sources, and window tiling, with features like night shift scheduling and profiles.

How It Works

1
🖥️ Discover OpenDisplay

You hear about this free tool that lets you easily control your external screens on your Mac, like adjusting brightness without fumbling with buttons.

2
📥 Download the app

Visit the website or release page and grab the simple installer file for your Mac.

3
🚀 Install it

Drag the app to your Applications folder and let it start up in your menu bar.

4
☀️ Adjust your screens

Click the menu bar icon, slide the brightness or contrast, and watch your external display respond smoothly and instantly.

5
🪟 Organize windows and more

Snap windows to edges, rearrange screens by dragging, or set up night mode schedules to make everything feel just right.

6
💾 Save your favorites

Create profiles for your perfect setup so it applies automatically when you plug in your monitor.

🎉 Perfect screen control

Now your Mac screens work exactly how you want, brighter, better arranged, and easier to manage every day.

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Star Growth

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AI-Generated Review

What is OpenDisplay?

OpenDisplay is an open-source macOS display manager built in Swift for Apple Silicon, letting you control external monitors via DDC/CI for brightness, contrast, volume, input switching, and power. It handles resolution and refresh rate changes (including hidden HiDPI modes), window tiling with edge snapping and grids, night shift scheduling, HDR brightness up to 1600 nits, and profiles that auto-apply on connect. As a free alternative to BetterDisplay, it runs as a lightweight menu bar app with CLI (`opendisplay --brightness 70`), URL schemes (`opendisplay://tile/left`), and global hotkeys.

Why is it gaining traction?

It packs enterprise-grade features like ambient light sensor sync, multi-display brightness matching, and soft disconnects into a sub-1MB native app—no Electron bloat. Developers dig the automation hooks: full CLI for scripts, Shortcuts integration, and hotkeys that trigger smooth transitions with native OSD popups. As a macOS open source alternative to paid tools, it stands out for handling Apple Silicon HDMI quirks with gamma fallbacks.

Who should use this?

Multi-monitor MacBook Pro users tired of fumbling with monitor buttons or Display Settings. Automation fans scripting display tweaks in Raycast or Alfred. Devs with XDR setups needing HDR unlocks, window grid tiling for debugging sessions, or CLI-driven profiles for hot-desk setups.

Verdict

Grab it if you want a capable open source macOS app for display control—docs are solid, Homebrew install is easy, and it builds cleanly from source. But with 11 stars and 1.0% credibility, it's early-stage; expect occasional DDC quirks on picky monitors and test Accessibility permissions thoroughly.

(198 words)

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