Online Collaboration Tools are digital platforms that enable teams to work together remotely. These tools allow users to share documents, communicate, and collaborate on projects in real-time. They provide an efficient way for teams to stay connected and work together, even when they are not in the same physical location
From Wikipedia
A collaboration tool helps people to collaborate. The purpose of a collaboration tool is to support a group of two or more individuals to accomplish a common goal or objective. Collaboration tools can be either of a non-technological nature such as paper, flipcharts, post-it notes or whiteboards. They can also include software tools and applications such as collaborative software.