Chromium - open source web browser for a safer, faster, and more stable way to experience the Internet, providing a tab-based window, download and bookmark management. Chromium is the application that serves as the foundation for Chrome, with Google's developers improving the software and adding a bunch of enhancements. However, Chromium isn't too far off the application that was thrown in the battle against Firefox and Internet Explorer. Chromium is actually a lighter Chrome that provides almost the same performance and functionality as Google's tool.