[1] The software uses voter data such as names, addresses and other information, such as previous voting records in the case of political campaigns, to allow users to centralize, build and manage campaigns by integrating various communication tools like websites, newsletters, text messaging and social media channels under one platform.

[2][3] Among other features, the software enables users to quickly create websites, build databases through registrations, send targeted newsletters, analyse data from multiple sources and leverage micro-donations.

[2] Green, who studied organizing at Harvard and was Mark Zuckerberg's roommate, is also the co-founder of the Causes Facebook app; he left NationBuilder in 2013.

[10][9] The software is reported to have played a role in some public elections in Europe, the US and New Zealand,[4][5][10] as well as non-profit initiatives,[12] and political parties in Australia.

[13] Notable users include Bernie Sanders, Mitch McConnell, Andrew Yang, Theresa May, Amnesty International, the NAACP and Donald Trump.

[9] Jill Stein of the Green Party,[20][21] Republican Rick Santorum,[22] and independent supporters of various candidates all used NationBuilder during their 2016 runs for president.