Help solve the world’s greatest challenges. Answer the call.

Use your skills to take on sustainability issues, from developing clean energy solutions to improving access to resources and protecting biodiversity. You could win prizes and see your solution deployed to make a difference.

Our mission

Call for Code invites developers and problem solvers around the world to build and contribute to sustainable, open source technology projects that address social and humanitarian issues, while ensuring the top solutions are deployed to make a demonstrable difference.

500,000+

Developers, data scientists, and problem solvers have created a unique tech for good community

180 nations

Contributors from around the world created more than 20,000 apps for humanitarian issues.

Multiple ways to get involved

Call for Code has expanded into a broader, always-on, tech for good platform, providing additional opportunities to get involved beyond the yearly Global Challenge. Discover open source projects, including Call for Code for Racial Justice, where you can contribute to make a lasting difference.

Call for Code Global Challenge

Form a team and take on sustainability

Open source projects

Connect with the communities and start contributing

Call for Code for Racial Justice

Join projects aimed at combating systemic racism

Solutions being deployed

Learn about our featured deployments

Partner with Call for Code

You don’t have to be a developer to make a difference. Call for Code has the year-round support of enterprises, experts, humanitarian and international organizations, charitable partners, celebrities, and more. Explore the many ways you can support Call for Code.

Partner with us