Free YouTube video downloader for macOS
Beautiful native app. No ads. No tracking. Open source.
- Download videos from YouTube and 1,000+ sites in MP4 (up to 720p)
- Extract audio as MP3 with one click
- Real-time progress with video thumbnails, title, channel, speed, and ETA
- Batch downloads — paste multiple URLs, downloads queue automatically
- Download history with Play and Reveal in Finder buttons
- Auto-updating engine — yt-dlp updates silently in the background
- Collections — Music and Videos auto-sorted by format
- Dark mode native macOS design
- Zero setup — just install and paste a URL
First launch: macOS will block the app. Go to System Settings → Privacy & Security → scroll down and click "Open Anyway" next to the 4Kly message.
- macOS 14 (Sonoma) or later
- Internet connection
- ~100 MB disk space (app + download engine)
- Paste a YouTube URL (or any supported site)
- Choose quality (720p) and format (MP4 or MP3)
- Click Download
- Watch the progress — thumbnail, speed, ETA all shown live
- Play or Reveal in Finder when complete
4Kly automatically downloads and manages yt-dlp and ffmpeg on first launch. No manual setup needed.
YouTube, Vimeo, Twitter/X, Reddit, Instagram, TikTok, Dailymotion, Twitch, SoundCloud, and 1,000+ more (1,752 extractors total).
git clone https://github.com/tpjuic/4KLY.git
cd 4KLY
open 4Kly.xcodeproj
# Build and Run (⌘R)Requires Xcode 15+ and macOS 14+.
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Your purchase supports independent development.
4Kly runs entirely on your Mac. No telemetry, no analytics, no data collection. All downloads and history are stored locally.
MIT License — free to use, modify, and distribute.
Built with ❤️ for macOS