| Software | Key Feature | Safety Rating | | :--- | :--- | :--- | | | Native 4K playback, codec support, free | ✅ Excellent | | 5KPlayer | AirPlay, DLNA, 4K downloading from YouTube | ✅ Good | | PotPlayer | Customizable 4K upscaling, low CPU usage | ✅ Very Good | | MPC-HC | Lightweight, perfect for 4K on older PCs | ✅ Excellent |