If you're used to using JIRA, ASANA or others... you won't be lacking with Freedcamp, one of the best task management tools I've used;
Very easy to learn, and very complete, I find it even easier to use than JIRA...
My only small regret is not having a Chrome extension (like Todoist) to easily add resources to a project... but the ability to add a discussion, a wiki or a task via Gmail is already quite sufficient.
custom fields, custom status, different views (Kaban, Gant, ticket management...) make this tool a must-have.

What's more, the integrated chat for chatting with your teams makes it even more attractive.

Don't miss out ;)