Tearline by NGA is a platform offering open source intelligence to the public. Developed by the National Geospatial-Intelligence Agency (NGA) in collaboration with non-profit organizations, Tearline aims to provide authoritative intelligence on strategic, economic, and humanitarian topics that are often overlooked. Users can access a wealth of content that is freely available to the general public.

The program allows users to browse articles chronologically or by selecting specific categories of interest. Additionally, Tearline offers an Article Overview feature that provides analytical insights, activity introductions, future focus areas, and key points to watch for. Users can also download structured data used in articles, presented in a user-friendly color-coded format.