GNU Lesser General Public License

BigBlueButton is available under the GNU Lesser General Public License

This means you are free to integrate BigBlueButton within your educational or commercial applications, whether you distribute the applications or run them on a hosted environment, as long as you adhere to the terms of the LGPL.

If you do make enhancements, keep in mind that BigBlueButton is the product of many dedicated people who believe it's possible to write a high-quality open source web conferencing system. The goal of this project is to offer you choice (you don't have to choose a commercial web conferencing system). If you share this philosophy and like the choice, then you'll find that the more you give to the BigBlueButton community, the more you get back.