Duolingo English Test (DET) is an English Proficiency Test taken by non-native speakers of the English language if they have to study abroad. It assesses your reading, writing, listening, and speaking skills. The test contains multiple-choice questions as well as open-ended questions.

The popularity of this test has grown over the years. Today, more and more universities have started to accept Duolingo in place of tests like TOEFL, SAT, ACT, etc.