Right now I'm manager in a small start-up. Getting Budget for project management tools is difficult, if not impossible. This force me to concentrate on open source project management tools. However I always found it little difficult to find right tool at right time. This force me to make a list of tools, which I'm now sharing so that it could be extended with time.
Asking which tool is best is a never ending debate as it is a matter of personal choice. However it is equally important to have a list of all available options; making choice is possible only when options are available.
I'm listing out some of the project management tool category and options available in the category; only open source options; not even feature limited part of paid option. No answer/debate is needed here; just list down the tools and let everyone go through the options and decide their preference.
