Confluence

Provides two free productivity tools. Toggl Track for time management and tracking app with a free plan provides seamless time tracking and reporting designed with freelancers in mind. It has unlimited tracking records, projects, clients, tags, reporting, and more. And Toggl Plan for task planning w

An online diagram tool with collaboration features. Free plan with three editable documents, 100 professional templates, and basic collaboration features.

The only project management solution inside GitHub. Free for public repos, OSS, and nonprofit organizations

Simple Weekly To-Do Calendar & Task Management.

Project management & Team Chat. Free for five users and two projects. Premium plans are available.

Online Planning Poker (consensus-based estimation tool). Free for unlimited users, teams, sessions, rounds, and votes. You don't need to register.

Free online scrum tool with kanban board

Issue tracker with a streamlined interface. Free for unlimited members, up to 10MB file upload size, 250 issues (excluding Archive)