Skryn

A lightweight macOS menu bar app for taking screenshots and annotating them.

Installation

1. Download Skryn.zip from the latest release
2. Unzip and drag Skryn.app to your Applications folder
3. Right-click the app → Open on first launch (required for unsigned apps)
4. Grant Screen Recording permission when prompted

Updating

Since the app is unsigned, macOS may revoke Screen Recording permission after updating. If screenshots stop working:

1. Go to System Settings → Privacy & Security → Screen Recording
2. Remove Skryn from the list
3. Re-add it; the app will prompt for permission again

Usage

Click the camera icon in the menu bar or press Cmd+Shift+5 (configurable in Settings) to capture your screen. An annotation window opens where you can draw before saving. You can also drag an image file onto the menu bar icon to open it for annotation.

Shortcuts

• Drag — Arrow
• Shift + Drag — Line
• Cmd + Drag — Rectangle
• Option + Drag — Crop
• Control + Drag — Blur
• Esc — Remove crop
• Delete — Remove hovered annotation
• Cmd+Z / Cmd+Shift+Z — Undo / Redo
• T — Toggle text mode
• U — Insert capture time (UTC) at cursor
• Cmd + + / Cmd + - — Increase / Decrease text size
• Shift + Enter — new text line (Enter will exit text mode)
• Cmd+Enter and Option+Enter and Control+Enter — Save to different locations (configurable in Settings)
• Cmd+W — Cancel screenshot

You can also hover over the annotation and change its size or drag it.

Build

Requires Xcode and macOS.

xcodebuild -project Skryn/Skryn.xcodeproj -scheme Skryn -configuration Release build