EasyLog

Sandbox2 and the Crysis game itself. Here's what the developer himself has to say on the application:

I wrote this a few weeks ago when I was trying to debug some errors with CryTools and became annoyed at having to keep opening the Editor/game logs and trying to find where the errors were with Crysis, wasting loads of time scanning through an average of 12,000 lines. So I wrote EasyLog and decide to tidy up the GUI today so I could release it as a seperate app to CryTools.

The program also includes many more advanced features such as filters defined with .ini files, a fast filter solution, and a log comparison tool, all of which are detailed in the readme located below.