FuzzyDiscreteOperators is a pure-Python library for operating with discrete connectives defined on a finite chain. Because the domain of each of the operators is finite, the library allows to check some theoretical properties of the operators, such as smoothness, divisibility, etc. Also, check specific properties of some operators, such as discrete implications and additional properties that can satisfy: exchange principle (EP), left neutrality principle (NP), contrapositive symmetry with respect to a discrete negation (CP(N)), etc. In addition, modules are included where these operators are applied, such as decision making from different points of view (discrete fuzzy numbers, two-tuples, etc.), or also the study of the cardinality of some classes of discrete operators. For a better understanding of the library, a specific page has been designed with its documentation, which can be found at the following link: https://mmunar97.gitbook.io/discrete-fuzzy-operators/