NetlistViewer is a tool capable of loading netlists in text format (currently only SPICE netlists) and convert them in a schematic (i..e graphical) form.
Please note that the tool is a quick project I created years ago to help me with understanding of some complex netlists modelling some integrated circuit. The tool is by no means complete but still is a good starting point to get an idea of what's "hidden" in a complex netlist.
Install the software. Click "Open SPICE netlist" and browse to NetListViewer "tests" and load one. For more complex examples look under the "examples" folder.
The software will draw a messy representation of what's inside the netlist (it will look for .SUBCKT statements), using lines to show connections among the various components.Then:
Try your best to obtain a view of the circuit; note that it's often not possible to get a flat representation of complex circuits without wire overlaps.
Feel free to add your suggestions / notes in the wiki page [HelpFromCommunity]
For more informations about the SPICE netlist format please go to:
http://www.ecircuitcenter.com/SPICEsummary.htm
Windows, Linux. Requires wxWidgets 3.0 and Boost >= 1.58 to build.