NHentaiDownloader

An extension to download doujinshi from NHentai

NHentai only allow to download doujinshi in .torrent format so I created this extension allowing to download them either in ZIP, CBZ or raw format.
You can either go on a doujinshi page to download it, or go to a page containing many of them to download them all at once.

403 errors

403 errors are related to the fact that NHentai added Cloudflare over their API, which basically is a tool that stop traffic that seems to come from bots or scripts (which is the case for this extension)
There is not much I can do for that, it indeed probably mean that bulk download will fail at random moments, or that any download may fail at any time

My advices on that:

• Try to download again while being logged-in
• Try to download again using a VPN

How to install the extension from Release page

Chrome

• Get the latest version of the extension on the release page You only need NHentaiDownloader.zip, unzip it somewhere in your computer
• Write chrome://extensions/ in your address bar
• Enable the developer mode (top right corner of the page)
• Press the Load Unpacked button (top left corner of the page)
• Go inside the folder of the extension and press Select a folder

Firefox

• Get the latest version of the extension on the release page You only need NHentaiDownloader.xpi
• Write about:addons in your address bar
• Click on the small gear at the top right and select Install Add-on From File...
• Select NHentaiDownloader.xpi

A quick note about the Chrome store

This extension was removed the 04/12/2020 from the Chrome Store because it doesn't comply with terms of service (since it contains mature content)
While there is nothing I can do against that, I still want to thanks you for using it, over 2 years it got a note of 4.3/5 and 12 858 users.

Build locally

npm install
npm run build

Start unit tests

npm test

Single download

Download many doujinshi at a time

Download many pages at a time