A collection of helpers for mangadex
This deletes all chapters of a user on the current page. After pasting it into the browser-console it will ask you which user's chapters you want to nuke. You will need to fill in the url of the user. Your user-url will be the default. Make sure you do have the permissions to delete them.
A userscript to add a download-button to mangadex-chapters. Install
You can find it's settings here
A userscript to add bulk cover upload to mangadex. It will use the first number in the filename as Volume.
A userscript which automatically fetches the rating of the current manga from mangaupdates and injects it into the current page. Install
A primitive bash-script to upload a single chapter to mangadex. For help how to use it, simply execute it without arguments. An improved version for bulk-uploads written in NodeJS can be found here.