All the applets below include the source code!

FaceMutator
A completely Java-based line drawing morpher. Source included!

Fade
Text that fades in and out.

FadeMenu
The free FadeMenu applet displays animated hyperlinks that fade in and out of view. As the author says, it's a "cool navigation toy for your homepage."

Fan
Expands shaded text horizontally.

FindIt
This is a really cool applet that presents you with two identical (almost) images. Find the differences and click on them before the clock runs out and you get to move on to the next level.

fire
Fire is another free visual applet you can use to heat up your Web site. And of course, source code is included!

FireWorks
Run a fireworks show behind your site title with this handy little applet that accepts a text parameter! Source included!

Firework
Generates an attractive fireworks display.

fireworks
A configurable fireworks simulator. Source included!

fontSelect
The free fontSelect applet is for use within your applets and applications, and allows users to choose the best text display.

FS
Scrolls multi-colored text in a variety of directions.

fxText
Scrolls a tiled background through the transparent areas of a foreground image.