Open Source Disaster Management Software

Making high quality information management systems for emergency preparedness, response, recovery and resilience-building accessible to all.


Sri Lanka completes Pictographs fieldwork, after devastating floods

Sri Lanka completes Pictographs fieldwork, after devastating floods

We had scheduled to carry out the Pictograph comprehensibility and appropriateness tests with Sarvodaya Communities during the last week of ...

Testing our first Prototypical Pictograph Dictionary in the Philippines

Testing our first Prototypical Pictograph Dictionary in the Philippines

We developed a prototypical pictograph dictionary and grammar around heavy rain instigated hazard events; namely ‘floods’ and ‘landslides’. This dictionary ...

Calling Mission Control

Calling Mission Control

A critical piece of functionality and a first milestone for EdenMobile is, and has always been, the exchange of data ...

EDEN Software

Sahana EDEN is the world's most popular open-source information management system for disaster and humanitarian aid management. With over 20 modules, it can support all phases of the emergency cycle.

Research & Action

We research methods for reducing the loss of life and property during disasters and turn our insights into open source software solutions for disaster risk reduction and disaster resource management.

Pictographs for Disaster Communication Logo

Mobile Pictographs for Alerting

Imagery for communicating disaster-related messages to the linguistically challenged.


Sahana Alert and Messaging Broker (SAMBRO)

Warning and situation-awareness system built using the Common Alerting Protocol (CAP) international standard.


CAP on a Map

Improving coastal resilience through a cross-agency situatioanal-awareness platform in Myanmar, Philippines, and Maldives


Our community builds open source tools to help people prepare for and respond to disasters.

The first version of Sahana was created in Sri Lanka to help coordinate the response to the 2004 Tsunami. Since then it has been deployed in over 30 countries by dozens of groups ranging from large international NGOs such as Internal Federation of Red Cross (IFRC) to grassroots networks such as Occupy Sandy.

As a nonprofit, community-driven free/libre/open-source software project, Sahana's success is dependent on a vibrant community of passionate and enthusiastic people. 

Learn more about us, follow us on Twitter, join our main listserv and read our blog.