We examine whether social media enhances democracy using cross-sectional data from 145 countries. We used Facebook penetration as a proxy for social media. Also, based on the complex definition of democracy, high-level indices, such as egalitarian, participatory, liberal, electoral, and deliberative democracies, were used to capture democracy. Our endogeneity-corrected results documented that high social media penetration, on average, enhances all forms of democracy. In descending order, social media penetration has contributed more to enhancing democracy in high-income economies, followed by lower-middle and upper-middle income economies. In low-income economies, social media penetration has a negative effect on democracy indices. We also documented heterogeneity in the findings based on regions. Marginal analysis also revealed that the positive effect of social media on democracy is higher in countries with higher internet penetration. We suggest that with appropriate interventions, policymakers could leverage social media to enhance democratic institutions.