List of useful free and collaborative tools The following are some of the most important free tools to use for collaborative purposes. ; Google Drive Safely store and share your photos, videos, files and more in the cloud. Your first 15 GB of storage are free with a Google account. Trello Trello keeps track of everything, from the big picture to the minute details. WeTransfer WeTransfer is the simplest way to send your files around the world. Share large files up to 2GB for free. Whereby Easy video meetings for your business. Start bringing your team and clients together with flexible video meetings. MindMeister MindMeister is an online mind mapping application that allows its users to visualize, share and present their thoughts via the cloud.