Cinderella

Cinderella is a Java application used for creating geometrical graphics on your computer and it is designed to be both mathematically robust and easy to use.
And since Java is built into many browsers, such as Firefox, Internet Explorer, and Safari, you and others can use your constructions across the Internet. Communicating geometry is easy with Cinderella.
Using this software you can create complex configurations from different fields and of different types like geometrical, calculus, discrete, fractals, forces etc.Limitations in the unregistered versionThe demo version is the same with the paid version except some more advanced features which are used for university teaching or the creation of an advanced content for publication.