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.
Chrome