HDS / HLS Video Downloader is a Chrome add-on developed by fattynoparents. This free program allows users to download streaming m3u8 and fm4 videos to their computer. With HDS / HLS Video Downloader, you can easily save videos from various websites and watch them offline.

The extension is simple to use and provides a convenient way to download videos for offline viewing. However, it is important to note that the extension may not work properly on some websites. If you are unsure about its compatibility with a specific website, you can request a test license key by emailing

It is worth mentioning that the extension does not support downloading AES-encrypted videos correctly. Additionally, Windows Player may have difficulties playing the downloaded videos, so it is recommended to use VLC player instead.

Overall, HDS / HLS Video Downloader is a useful tool for those who want to save streaming videos for offline use. Just be aware of its limitations and compatibility issues on certain websites.