Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function.



Stay - Userscripts Extension is described as 'Stay is a new generation browser script manager on Safari. It supports both native scripts and tampermonkey and violentmonkey scripts' and is an app. There are six alternatives to Stay - Userscripts Extension for a variety of platforms, including Mac, Mozilla Firefox, Windows, Linux and Android apps. The best Stay - Userscripts Extension alternative is Greasemonkey, which is both free and Open Source. Other great apps like Stay - Userscripts Extension are Violentmonkey, Tampermonkey, FireMonkey and Macaque.
Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function.



Violentmonkey provides userscript support for Chrome, Opera, Maxthon and Firefox supporting most scripts for Greasemonkey and Tampermonkey.



Tampermonkey is a free browser extension and the most popular userscript manager for Blink- and WebKit-based Browsers like Chrome, Opera Next and Safari.




Firemonkey is a totally new combined user-Scripts and user-Style manager. While it has similar functions to other user-Script managers like GreaseMonkey/Tampermonkey/Violentmonkey, and user-CSS managers like Stylish/Stylus/xStyle, there are also differences.


Macaque is a UserScript Manager Browser Extension. Macaque provides you the ability to add, edit, remotely edit, as well as view the console logs for each UserScript!.




