Minimal native macOS video player — gapless loop, instant open, QuickTime-style scrub.
Double-click or Open With from Finder. Set as the default player with Get Info → Change All. Multiple videos at once. Plays locally with AppKit + AVFoundation only.
↓ Download Looper.dmg · All releases
- Gapless looping —
AVQueuePlayer+AVPlayerLooper - Instant open — parallel size + playable probe; native resolution window
- Dockless document player — Stays hidden from the Dock (
LSUIElement); Finder Open With / Get Info → Change All. Yellow or ⌘M hides a video in the menu-bar list; select it there to restore. Closing the last window quits the app. The menu-bar extra lists open windows, recent files, and Quit Looper (⌘Q) while a loop is open. - Multi-window — cascade placement + per-file frame memory
- Transparent title bar — video shows behind the window controls instead of a solid gray strip
- Glass-capsule timeline — scrub bar in a rounded capsule fixed beneath the video (never overlays the picture); scroll to seek
- Drop onto a window — replaces the current clip; extra files open in new windows
- Apple Silicon native — arm64 only · zero external dependencies · HDR/EDR only when the file is HDR
- Formats —
mp4,mov,m4vvia AVFoundation.mkvis registered for Open With but often cannot play (no FFmpeg)
- Download
Looper.dmg - Open the DMG and drag Looper.app to
/Applications - First launch — right-click → Open if Gatekeeper prompts (ad-hoc signed build)
- Optional default: select a video → Get Info → Open with Looper → Change All (once per type: mp4, mov, m4v, …)
Requires macOS 14+ on Apple Silicon.
Focus the video window first.
| Key | Action |
|---|---|
| ⌘Q | Quit Looper |
| ⌘M | Hide focused video in the menu bar; select it there to restore |
| Space | Pause / resume |
| F8 | Pause / resume (media key) |
| F7 / F9 | Hold to scrub backward / forward; release to stop |
| Volume up / down / mute | Looper volume (not system volume) |
| M | Mute / unmute |
| 1 | Toggle 50% ↔ 100% speed (shown on the speed circle) |
| L | Rotate counter-clockwise 90° (display only) |
| Return | Close this window |
| 0 | Reset speed to 100% |
| ← / → | Scrub rewind / forward (hold to scrub continuously across clip) |
| ↑ / ↓ | Volume up / down |
Scroll on the video: up/right = forward · down/left = rewind.
Drop a video onto a playing window to replace it. Extra files in the same drop open in new windows.
xcodebuild -project Looper.xcodeproj -scheme Looper -configuration Release \
-derivedDataPath build/DerivedData -arch arm64 build
./scripts/install-to-applications.shRelease DMG (shared .razorcore branding + locked DMG layout):
./scripts/build-mac.sh
# or from Apps/: uv run --project .razorcore razorbuild LooperOutput: build/Release/Looper.dmg (no loose .app in the repo).
See BUILD_AND_RELEASE.md.
- Right-click a video → Get Info
- Open With → Looper → Change All…
MIT — see LICENSE. Copyright © 2026 RazorBackRoar
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