NinjaKit Alternatives

Greasemonkey

Customize the way a web page displays or behaves, by using small bits of JavaScript.

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. Even though...

Features:

• Internet Explorer extension
• Microsoft Edge extension

Violentmonkey

Violentmonkey is a userscript manager to support running userscripts in web pages.

Features:

• Google Chrome Extensions
• Browser extension
• Firefox Extensions
• Lightweight
• Opera extension

Stylebot

Change the appearance of websites instantly by applying a easy to use interface for changing the CSS. Preview and install styles created by users for your favorite...

Features:

• Live css editing
• Configurable
• Multiple Font Colors
• Web Development

FreeStylerWs

Styles and skins for all popular sites in the web FreeStyler is a browser add-on that has everything you might need to style up websites you visit according to your...

Features:

• Browser extension
• Google Chrome Extensions
• Configurable
• Firefox Extensions
• Safari extension
• Themes

Scriptify

Create and manage add-ons made from Greasemonkey and Scriptish user scripts

GreaseKit

GreaseKit is a SIMBL plugin, that adds user scripting to Safari, Mailplane, Diet Pibb.app and all WebKit applications.

Site Connector

Reuse data from one website on another. Try Site Connector, a fast and convenient productivity boosting extension.

Features:

• Browser extension
• Google Chrome Extensions
• Scripting
• Youtube downloader

Live editor for CSS and LESS - Magic CSS

Live editor for CSS, Less & Sass, with Live preview of code with an in-page editor. . Featuring: Autocomplete, Less/Sass code to CSS conversion, beautify, minify...

Features:

• Live css editing
• Browser extension

reShape-Craigslist

Do you think Craigslist is tough to navigate? Or maybe you think it looks like it's from the 1990's? Maybe you think it's just plain ugly? This free...