This is a browser extension that downloads videos from NHentai as MP4 files. It detects supported video pages, lets you pick from available quality options, and saves everything to a dedicated folder. The workflow is straightforward: play the video so it can detect the stream, open the popup or use on-page controls, select quality, and export. Comes with 3 free downloads for testing, then requires a paid license. It only works on pages you can already access and play in your browser session, so if you need account access on the site, you'll need that first. Supports Chrome, Firefox, Edge, Opera, and Brave.
npx skills add https://github.com/serpdownloaders/skills --skill nhentai-downloader