Open Source Tools for Workgroup Collaboration

Want to keep your teams connected even when they are disconnected? RetroShare, SparkleShare, and I2P are free tools that support chat, data sharing, and other collaboration services.

By Thomas Joos

Updated Nov 12, 2026 1:46 PM / Published Feb 24, 2018 2:00 AM 5 min read

Sillhouette of head with glowing gears for a brain. — Lead Image © Setsiri Silapasuwanchai, 123RF.com

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Thomas Joos

Thomas Joos is a freelance IT consultant and has been working in IT for more than 20 years. In addition, he writes hands-on books and papers on Windows and other Microsoft topics. Online you can meet him on: https://www.thomas-joos.com.