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The developer wiki (including release notes) and issues tracker are located here.

This site is primarily for developers. If you are not a developer, please visit

Open Data Kit (ODK) is a free and open-source set tools which help organizations author, field, and manage mobile data collection solutions. ODK provides an out-of-the-box solution for users to:

  • Build a data collection form or survey;
  • Collect the data on a mobile device and send it to a server; and
  • Aggregate the collected data on a server and extract it in useful formats.

In addition to socio-economic and health surveys with GPS locations and images, ODK is being used to create decision support for clinicians and for building multimedia-rich nature mapping tools. See featured deployments and list of tools for more examples of what the ODK community is doing. We welcome and encourage participation from the user community.

Downloads of the tools are available at Downloads.