ThinFlashDebug (TFD) is a simple and lightweight debug tool. It uses a LocalConnection to log messages from your Flash application to a standalone debug window. It uses only static functions and no includes are necessary.
ZTORLog4f is a simple logging tool that allows you to debug and control your Flex2 applications. ZTORLog4f statements can remain in shipped code and may be controlled at runtime by modifying a configuration file.
An XML socket server written in C# to be used by Flash developers who desire comprehensive logging and property inspection capabilities without the to use the Macromedia IDE.