Easy to use software available for Windows, Mac OS and Linux to draw realistic breadboard prototypes. If you created your own design on a breadboard and want to share with others or to document it for yourself, Fritzing provides you the WYSIWYG way to do it.
Out of the box it contains quite big library of components, controllers and breakout boards.
It took me around 20 minutes to download, install it and create simple yet working LED design.
In addition to that Fritzing can translate your breadboard drawing to a schematic and even offer you PCB production services. You can also share your design with the community in few clicks.
A must have for hobbyists.