A graphical tool for designing finite state machines and exporting them to Hardware Description Languages, such as VHDL, AHDL, Verilog, or Ragel/SMC files for C, C++, Objective-C, Java, Python, PHP, Perl, Lua code generation.
sql2diagram converts sql scripts to diagrams in the XML format dia, which can be viewed and further maintained with the dia drawing program. It is a good help for the documentation of a database structure. It provides HTML output as well.