The Sahana Software Foundation develops free and open source disaster management software to help organizations better prepare for and respond to disasters. It was established in 2009 as a 501(c)(3) nonprofit after its software, Sahana, helped coordinate relief efforts following the 2004 Indian Ocean tsunami. Sahana has since been deployed during many disasters worldwide and is used by humanitarian groups, governments, and aid organizations to manage resources, locate people, and map communities to strengthen disaster resilience.