Userscripts topic
A userscript is a kind of lightweight and less privileged browser extension written in JavaScript used to modify webpages. Userscripts may use the special API, usually referred as GM_API, allowing them to bypass same-origin policy and store data in separate storage not accessible to web pages. The technology was initially introduced in the GreaseMonkey extension for Firefox web browser, and then spread to other browsers, sometimes built-in, like in Presto-based Opera, sometimes with help of extensions, like in Chromium-based browsers. The most famous catalogs of userscripts are GreasyFork and OpenUserJS.
WeiyunHelper
微云辅助脚本支持导出到 Aria2 下载、粘贴 ed2k/magent 链接
JavaScripts
A collection of userscripts for interacting with Danbooru.
ac-predictor.user.js
ac-predictor(UserScript)のソースコード
DocScripts
Quality of Life Scripts created and maintained, by Doctor, for a web browser game called Politics and War. Available on all Major platforms.
deviantART-Filter
A browser extension that allows you to filter DeviantArt by user, keyword, and/or category.
library-helper
A userscript that display links between different libraries and book stores
Let-s-panda
A Greasy Fork user script for exhentai
zhihu-watermark-remover
Userscript that removes or fakes blind watermarks on Zhihu's webpages