Welcome to GTKWave

GTKWave is a fully featured GTK+ based wave viewer for Unix, Win32, and Mac OSX which reads LXT, LXT2, VZT, FST, and GHW files as well as standard Verilog VCD/EVCD files and allows their viewing. You can grab version 3.3.68 here. Documentation in pdf format can be found here.

For svn access to the experimental, pre-release sourcetree on Sourceforge:
svn checkout svn://svn.code.sf.net/p/gtkwave/code/ gtkwave-code

The Win32 version is available here, however if you are running Cygwin, running under that is recommended instead.
A Mac port can be found both here and here. A ready to use Quartz (not X11) App bundle for x86_64 can be found here.
Ports to other platforms which GTK supports should be trivial.

[GTKWave Splash Image]
An experienced professional shown violating most known rules of electrical safety with GTKWave. Please do not attempt this at home.

[GTKWave Screen Grab Mac]
Simply download, unzip, and it is ready to run on the Mac...

Download the sourcecode tar.gz file.

For a high-performance compiled code Verilog simulator that generates FST files, see here.