Java Applets are small programs can be added to your web pages to allow for greater interactivity.

1. 3D Structure Viewer Applet - by VAU.
2. AlexWarp - A Java applet, including source code, that lets you warp Bill Gates' face (or, indeed, anyone else's).
3. Alienorganic - An interactive Mandelbrot fractal applet.
4. Amazing Spiro - An applet for making spirograph-like drawings; supports saving. Source available on request.
5. The Animator Applet - Plays a sequence of images, as a loop or a one-shot. Also supports playing a soundtrack and sound effects tied to individual frames.
6. Applet Depot- Free Java applets for web pages.
7. Appletside- A collection of applets such as counters, chat, and games. Some have source code available. There are samples of useful Java code for developers.
8. BrainCode Java Applets- PowerHouse Java applets (free and pro versions). Stunning slideways slideshow applet, JavaScript controlled applet.
9. CartoonPopUps- A cartoon bubble with text of your choice appears when your cursor is over the image link. CartoonPopUps are completely FREE for non-commercial use.
10. CodeBrain.com- provides free top-quality Java multi-media, animation, and utility applets with free download kits.
11. Dragonlady Applets - Using applets to enhance images. Applets include lake, ripple, deform, huerot, snow, pool, doodle.
12. Dynamic Graph Utility - Add dynamic graphs to your site.
13. Freewarejava.com- Formerly Java Phone Book, a starting point to many Java resources on the net. Here you'll find a directory to Java applets of all types, Java tutorials, references, articles, etc.
14. HanengCharts - Colorful charts and graphs. Perfect for online reports and websites that need to display a lot of data like stock sites.
15. JARS: Java Applet Rating Service- Searchable Collection of Java applets and class libraries judged "Top 1%", Top 5% .Good place to start looking for Java applets and class libraries.
16. Mondrian - An applet to randomly generate modern art in the style of Piet Mondrian.
17. NavSurf.com- A suite of navigation and menu applets as well as free scrollers for web developers.
18. Online Image editor - One may create or edit a picture directly at a Web page. A picture may be uploaded/downloaded to/from a server in PNG format. Installation assistance.[Commercial/Evaluation]
19. 3Quarks - Colorful applets with source code and a comprehensive description of the applet parameters. The applets are written in Java 1.0 and thus available problem-free on all Java enabled browsers.
20. RChart - Java applet and classes to create more than 10 different types of charts: linechart, piechart, barchart, radar, candlestick. [Commercial]
21. 6sense.com Applets - Collection of 6 free visual effect applets. Flame, Imgshow, Sphere3D, Snowdrift, StarGaze, and StarZone.
22. textscroller - Vertical text scroller (java applet).
23. ViewTIFF - Applet that allows the viewing of color or black and white TIFF documents through the Internet. [Commercial, w/ demo version]
24. Virtual Experiences - Virtual worlds in Java3d and interactive dynamic graphics in Java2d.
25. WStar - Lines and circles.