Simply out of boredom I have developed a very simple application to draw fractals from the L-system description. I am fascinated by their structure and elegance. But, unfortunately, I am not going to discuss fractals and L-system in this blog. There are many good sources to learn about those on the web. I am here just to introduce the tool. To see the tool in action please watch the video . Download the tool from GitHub . Dependencies Python 3.0 or above Tkinter Turtle Input Description Axiom: The initial string for the generation. Rules: A set of production rules. Rules are taken in form of Python Dictionaries. Angle: Required Angle of rotation for the fractals. Side Length: Length of each side of the Fractals. Sample input for Piano-Gosper-Curve is: Axiom = FX Rules = {"X":"X+YF++YF-FX--FXFX-YF+", "Y":"-FX+YFYF++YF+FX--FX-Y"} Iterations = 4 Angle = 60 Side Length = 3" Sample In