Comparison

Free and functional.

You get what you pay for! Easy file, folders, and 3-way compare with direct editing of the result. Syntax highligting, usefull filter and ignore rules, support for binary, umage, and excel files. Used it for +6 years without any problems.

While they review mainly forex brokers they also give info about other trading options they provide, the software used and more. I'm genuinely impressed by the detail in which they go into.

This is the one I've been using. It works pretty well if the originals line up, and with multi-page documents, but crashes often and is abandoned by the developer.