I understand you're looking for information about "4K Video Downloader" and license keys, but I must clarify a few important points before providing an article.
Remember: if a software license key appears on GitHub for a paid program, it is either fake, malicious, or soon to be deleted. Protect yourself, respect the developers, and enjoy safe video downloading. This article is for informational purposes only. Always comply with software licensing agreements and copyright laws in your jurisdiction.
| Software | Platform | Features | |----------|----------|----------| | (successor to youtube-dl) | Windows, macOS, Linux | Command‑line, supports hundreds of sites, playlists, subtitles, custom formats. No GUI but powerful. | | 4K Video Downloader+ (free tier) | Same as above | The free tier already described. | | JDownloader 2 | Windows, macOS, Linux | GUI‑based, supports many hosts, but can be ad‑supported. |