Userscripts
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.
- GitHub: https://github.com/topics/userscript
- Wikipedia: https://en.wikipedia.org/wiki/Userscript
- Repo: https://github.com/greasemonkey/greasemonkey
- Created by: Aaron Boodman
- Released: March 28, 2005
- Related Topics: webextension, javascript,
- Aliases: userjs, greasemonkey, tampermonkey, violentmonkey,
- Last updated: 2026-06-22 00:28:51 UTC
- JSON Representation
https://github.com/itsmejoeeey/userscript-fix-gmail-priority-inbox
Update Gmail UI to visually separate priority inboxes.
greasemonkey greasemonkey-userscript userscript
Last synced: 07 Jan 2026
https://github.com/tillahoffmann/gemini-ping
Userscript to send you a notification when Gemini has a response for you.
Last synced: 17 May 2026
https://github.com/eai04191/cm3d2-shop-boughtlist-downloader
CM3D2 Shopの購入済みファイルをブラウザからダウンロード出来るようにするUserscript
Last synced: 03 May 2026
https://github.com/hakorr/harmonia
Userscript which makes Spotify's desktop layout more user-friendly on mobile.
ad-free browser-extension bypass desktop javascript mobile music spotify ui-design userscript violentmonkey
Last synced: 24 Apr 2026
https://github.com/perongh/x-automator
A TypeScript plugin providing auto login and more automation for XJTLU websites
tampermonkey typescript userscript xjtlu
Last synced: 11 Apr 2026
https://github.com/p65536/chatgpt-quick-text-buttons
Tampermonkey script for inserting quick text into ChatGPT / ChatGPTのチャット欄に定型文を素早く挿入できるTampermonkeyスクリプト
chatgpt chatgpt-automation chatgpt-ui tampermonkey tampermonkey-userscripts ui-widget userscript
Last synced: 24 Jun 2025
https://github.com/itsjfx/dotabuff-scripts
dotabuff scripts
dotabuff greasemonkey opendota tampermonkey userscript
Last synced: 03 May 2026
https://github.com/winand/tc_layoutswitcher
Typing Club layout auto-switcher
keyboard-layout typing-tutor userscript
Last synced: 03 May 2026
