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🎬 About

4K Video Downloader is a powerful desktop application for downloading videos, playlists, channels, and subtitles from YouTube and 100+ other video hosting platforms. Supports resolutions from 360p all the way to 8K (4320p) with HDR when available.

Convert videos to MP3 or FLAC on the fly, grab embedded subtitles in SRT/VTT format, and download entire YouTube channels with one click. Multithreaded download engine splits files into segments for maximum speed.

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🌐 Supported Platforms

Platform	Video	Audio	Playlist	Subtitles
YouTube	✅	✅	✅	✅
Vimeo	✅	✅	✅	✅
Dailymotion	✅	✅	✅	❌
Facebook	✅	✅	❌	❌
Instagram	✅	✅	❌	❌
Twitter/X	✅	✅	❌	❌
Twitch (clips/VODs)	✅	✅	❌	❌
Reddit	✅	✅	❌	❌
100+ others	✅	✅	—	—

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✨ Features

• Resolution up to 8K — download in 360p, 720p, 1080p, 1440p, 2160p 4K, or 4320p 8K
• HDR Support — HDR10 and Dolby Vision when available
• Playlist Download — grab entire YouTube playlists with one URL
• Channel Download — subscribe to a channel and auto-download new uploads
• Audio Extraction — convert to MP3 (up to 320kbps) or lossless FLAC
• Subtitle Download — embedded and auto-generated subtitles as SRT or VTT
• 360° / VR Video — download spherical and VR180 content
• Proxy Support — HTTP/SOCKS5 proxy for geo-restricted content
• Multithreaded — up to 8 parallel connections per download
• Smart Mode — save format preferences and apply to all future downloads
• In-App Browser — browse and download without leaving the app
• Scheduled Downloads — set time-based download schedules

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📥 Download

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🚀 How to Use

1. Download and install from the link above
2. Copy a video URL from your browser
3. Click Paste Link in the app
4. Choose quality, format, and output folder
5. Click Download

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📁 Project Structure

├── src/
│   ├── Engine/
│   │   └── MultiThreadDownloader.cs
│   ├── Extractors/
│   │   ├── YouTubeExtractor.cs
│   │   └── GenericExtractor.cs
│   ├── Converters/
│   │   └── AudioConverter.cs
│   ├── Subtitles/
│   │   └── SubtitleParser.cs
│   └── UI/
│       └── DashboardView.cs
├── bin/
│   └── Release/
├── README.md
└── banner.svg

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_{YouTube is a trademark of Google LLC. All other trademarks belong to their respective owners. This project is independent and not affiliated with any listed platform.}