How to use Grand Challenge

Join our growing community of over 63.000 users

Join us by creating an account here. Find more information on registering and verifying your account here.

Learn how to use and create your own algorithms, challenges or reader studies

Check out our hands-on tutorials on algorithms, challenges and reader studies.

Make use of our public API

Uploading your data or running your algorithm on Grand Challenge can be done through the website, but you can also interact with Grand Challenge programmatically through the API. Learn more about how to use the GC API here.

Still got questions?

If you cannot find the answer to your question here or in the forum, feel free to contact us at

Contributing to Grand Challenge

Would you like to contribute new features to Grand Challenge or spin up your own instance? Have a look at our developer documentation.