This article discusses the importance of data collection for NGOs and the benefits of using open source tools. There are many different tools available, but some of the most popular include Open Data Kit (ODK), JavaRosa, uSurvey, and TextIt. These tools are all free and easy to use, and they can be used to collect data from a variety of sources. OpenXdata is another option that is specifically designed for collecting data from mobile devices. NGOs can use these tools to improve their decision-making and better understand the communities they serve.