A macOS menu bar clipboard manager, everything you copy, kept safe, searchable, and one shortcut away.
A single dependency-free Swift Package, builds with the swift CLI alone, no Xcode project required.

What it does

• Watches the pasteboard and keeps a history of everything you copy (skipping entries that password managers mark as concealed).
• Press ⌘⌥C anywhere to summon the history panel, ↑/↓ to pick an entry, ↩ (or double-click) to copy it back to the clipboard (⌥↩ for a file's path), ⌘↩ to paste it straight into the app you were in (⌘⌥↩ for the path), Esc to dismiss. With Paste with Return on in Settings, the two swap: ↩ and double-click paste, ⌘↩ only copies. Pasting needs Accessibility access, asked for the first time you paste. Rows drag out as text, files, or images, and resting on a thumbnail opens a larger preview that drags out too. The trash button beside the search field wipes the whole history, after asking once.
• Notes which app each copy came from (the frontmost one when the copy is seen; macOS doesn't record the writer) and shows its icon at the row's right end.
• Keeps the history newest-first, promotes re-copied items instead of duplicating them, and caps the stored count, a pure model in ClipboardHistory.swift, tests and all.

Building the app

./Scripts/bundle.sh
open build/Coffer.app

The app icon is compiled from the Icon Composer document at Assets/AppIcon.icon (generated by swift Scripts/make-assets.swift), so on macOS 26+ the system renders it live with the Liquid Glass treatment, including the dark, clear, and tinted variants.

Development

swift run             # run once
./Scripts/dev.sh      # rebuild & relaunch on source changes
./Scripts/test.sh     # unit tests (equivalent to `swift test`)

Swift Testing needs full Xcode, Command Line Tools alone won't run it.

Code structure

Sources/Coffer/
├── main.swift                   # Entry point (accessory app, no Dock icon)
├── AppDelegate.swift            # Menu bar item, hotkey + watcher wiring
├── ClipboardItem.swift          # One copy: text, image, or files
├── ClipboardHistory.swift       # Pure history model: ordering, promotion, cap, search (tested)
├── ClipboardStore.swift         # App-side store: entries (item + source app), change notifications
├── HistoryPersistence.swift     # The history on disk across launches
├── PasteboardWatcher.swift      # changeCount polling, concealed-type filtering, source app
├── HotKeyCenter.swift           # Carbon RegisterEventHotKey wrapper (⌘⌥C)
├── HistoryPanelController.swift # The floating history palette
├── ThumbnailPreview.swift       # The larger preview popover beside a row
├── ItemDrag.swift               # What a row or preview carries when dragged out
├── SettingsWindow.swift         # Settings (SwiftUI grouped form)
├── AppPreferences.swift         # UserDefaults-backed preferences
├── OnboardingWindow.swift       # First-run welcome
├── Localization.swift           # Korean strings, resolved without Bundle.module
├── UpdaterController.swift      # Sparkle updates
└── TranslocationHealer.swift    # Moves a quarantined copy out of App Translocation

Roadmap

• App exclusions: never record copies from chosen apps.
• Shortcut: a recordable shortcut for the history panel.

License

MIT, see LICENSE. Bundled third-party software and its licenses are listed in THIRD-PARTY-NOTICES.md.

Inspired by Maccy. No code is shared.