Free!
CSS filter generators for images. You can choose between different preset filters or create your own.
Free!
Good CSS clip-path maker.
Free!
Nice tool to create 3D graphics in CSS format. Once you have created your own object you can extrapolate the html/css code and rotate it with CSS.
Free!
Play with the curvature of an html element and extract your css code. Easy to use and very scenic :).
Free in beta
As his name says, this tool creates CSS code for keyframe based animations. There is a timeline and a convenient editor for drag and drop actions, also has numerous settings.
Free!
Create your own animation in CSS by setting the many preset animations. For interesting effects to be included in your web pages.