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: 2026-07-01 00:29:09 UTC
JSON Representation

https://github.com/hakorr/harmonia

Userscript which makes Spotify's desktop layout more user-friendly on mobile.

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Last synced: 24 Apr 2026

https://github.com/g-otn/reddit-place-2022-overlay-script

Userscript which allows the user load, overlay and toggle any image into the 2022's r/place canvas

image-overlay reddit-place rplace userscript

Last synced: 18 May 2026

https://github.com/abc202306/nhentai-web-clipper-for-obsidian

🔞 A user script that exports NHentai gallery metadata as Obsidian Markdown files (Obsidian NHentai Web Clipper).

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Last synced: 29 Apr 2026

https://github.com/moontai0724/userscript-template

Boilerplate to kickstart creating an userscript with Vue 3!

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Last synced: 11 Apr 2026

https://github.com/gslin/google-maps-a-link

Add `a` links to Google Maps

google-maps userscript

Last synced: 15 May 2026

https://github.com/yossy17/monsnode-autoplay

adult-videos auto-clicker autoplay monsnode mute twitter userscript

Last synced: 07 Apr 2025

https://github.com/poohcom1/twitter-art-tags

Userscript for organizing art on twitter.

greasemonkey supabase twitter userscript

Last synced: 26 Jan 2026

https://github.com/cierra-runis/fuckqq

一个浏览器扩展插件，杀了腾讯管家他妈

javascript js qq userscript

Last synced: 09 May 2025

https://github.com/hrussellzfac023/voiceworks-toolkit

Japanese language learning toolkit for immersion with native voiceworks. Tampermonkey userscript for asmr.one with on-device Whisper transcription, neural translation, semantic search, and 20+ features — all running locally in-browser.

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