I might be doing this a lot of apache log file analysis in a few days so might as well take look at the the open source (and others) project there are t to perform this task.
I discovered the following projects:
- logQL (GPL v3)
- WebLog Expert ( with an Lite Freeware version)
The first one seems nice simple and the GUI is kept very simple. While the second one seems to have a lot of features. However, I have not tried to see exactly which one are available in the lite version.
I might also add a number of other libraires here.