The aim of this paper is to present EQCHANGE, the new database developed by the CEPII on effective exchange rates. EQCHANGE includes two sub-databases containing data on (i) nominal and real effective exchange rates, and (ii) equilibrium real effective exchange rates and corresponding currency misalignments for advanced, emerging and developing countries. More specifically, the first sub-database delivers effective exchange rates for 187 countries that are computed under three different weighting schemes and two panels of trading partners (186 and top 30) over the 1973-2016 period. The second sub-database provides behavioral equilibrium exchange rate (BEER) estimates and corresponding currency misalignments for 182 economies over the 1973-2016 period. We describe the construction of the two datasets and illustrate some possible uses by presenting results concerning the evolution and main characteristics of currency misalignments in the world from 2015 to 2016. By providing publicly available indicators of equilibrium exchange rates, EQCHANGE aims to contribute to key debates in international macroeconomics.