Greasemonkey is a userscript manager for Firefox that allows you to customize the way webpages look and function.
Best GreaseMonkey (for Chrome) Alternatives ranked by AI · updated May 2025
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GreaseMonkey is a userscript manager specifically for Chrome browsers.
Price: Free
Top 6 GreaseMonkey (for Chrome) alternatives
Chameleon WebExtension is a versatile tool for customizing the appearance and behavior of web pages.
Free with premium options available
Violentmonkey is a popular userscript manager for browsers that allows users to customize the way web pages look and function by running...
Tampermonkey is a popular userscript manager that allows users to customize the functionality of websites by installing scripts.
5
Sitemod
Sitemod
Sitemod is a browser-based website customization tool for changing the appearance and behavior of existing websites. It is aimed at users who...
Pros
- Designed for persistent website customizations rather than one-off developer-tool edits
- More approachable for non-developers than writing userscripts from scratch
- Can target existing websites without access to their source code
Cons
- Less mature and less widely supported than established userscript managers
- May require site-specific maintenance when websites change their layouts
- Not a replacement for a full website builder or source-code editing workflow
User JavaScript and CSS is a tool for customizing and enhancing the appearance and functionality of websites by injecting custom scripts and...
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