TimingEditor is a tool to graphically draw and edit timing diagrams.
- Draw and edit timing diagrams
Great app for free! It does the basics very well, however, a little light in some options, so I'll only give it 4 stars. A couple things I'd like, in order of importance: changing the scale doesn't rescale the signals (could be an option), the measurement lines do not display time delta, no copy/paste for repeating patterns or signals (Edit: actually you can copy & paste a whole trace). Free text and analog signals can be handled by exporting to PNG and editing the image. The guide is a great combination of conciseness and completeness, not easy to do! But it doesn't mention that you can change the order of the traces by selecting and dragging a trace.
I found the interface non-intuitive but definitely worth using. @mpa47: You can use with more 12 clock cycles. I stopped adding clocks after I reached 100.