Exploratory testing is a type of manual testing in which the tester actively investigates the software under test, using their knowledge and expertise to identify and test potentially problematic areas. This approach to testing allows the tester to use their creativity and curiosity to uncover issues and test areas of the software that might not be covered by traditional test cases.
Exploratory testing is often used in conjunction with other types of testing to provide a more comprehensive and thorough test of the software, as part of the continuous delivery process. It is particularly useful for testing unusual or unexpected inputs and uncovering hidden or unexpected behaviors in the software.