Public goods infrastructure should be free to use, but it's not free to build and maintain.

Your ongoing support is essential to keep OSF and open science moving forward. With every donation, you help to open up another data set, support another preprint service, accelerate the pace of research, and ensure science remains open.


If you are looking to support a specific preprint service, please click here. Interested in giving offline? Learn more about the variety of ways you can support COS by visiting

COS is a public charity as described in Section 501(c)(3) of the Internal Revenue Code; EIN #46-1496217. Your donation is tax deductible to the extent allowed by law. Help us keep science open and make a donation today. If you have questions or would like to support COS using assets or mechanisms outside those mentioned above, please contact Terry Foor, Director of Development, via email at or call (434) 207-2229.