VideoClipper

VideoClipper is a native macOS app built with SwiftUI and AVFoundation that provides basic video editing capabilities including trimming, cropping (with aspect ratio presets), and 90-degree rotation. It features a drag-and-drop interface and a filmstrip bin for managing multiple clips. A key feature is the "frame handoff" workflow designed for bug reporting to AI coding agents. Users can mark specific frames, add notes, and use painting tools (freehand, rectangles, ellipses) to annotate the video. By pressing ⌘E, the app exports downscaled JPEGs and a markdown manifest containing absolute paths, timestamps, and notes to the clipboard, allowing for a single-paste transfer to agents like Claude Code. Additionally, the app includes a Timeline mode for stacking full-frame layers, allowing users to duplicate, reverse, and arrange clips vertically to control playback priority. The application supports undo/redo for all staged edits and provides a comprehensive set of keyboard shortcuts for efficient navigation and editing.