The 2021 Call for Code Global Challenge is now open
Use your skills to take on climate change. You have a chance to win $200,000 USD and receive comprehensive support to see your solution deployed.
How will you answer the call?
See your solution
deployed
Through the Call for Code initiative, you have the opportunity to build and contribute to sustainable, open source technology projects that address social and humanitarian issues. Call for Code is different from other tech for good initiatives in that top solutions are deployed to make a demonstrable difference in the communities with greatest need.
400,000+
Developers, data scientists, and problem solvers have created a unique tech for good community
179 nations
Contributors from around the world created more than 15,000 apps for humanitarian issues
How to get involved
There are many ways to get involved with Call for Code, from forming a team and competing in the Global Challenge to contributing code to existing open source projects. Pick the engagement that is right for you and build skills while making meaningful change.
Partner with us

There are many ways you can partner with Call for Code, whether it’s providing expertise, problem solving and technical skills, deploying or adopting projects, or offering financial support through sponsorship.
Be a Call for Code partner
Share your support
Join a community of developers and innovators using open source technology to take on the world’s greatest issues. Challenge your friends, family, and colleagues to do the same by clicking a social network and making a personal post.
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