DeepFake-o-meter is an open-access platform that integrates state-of-the-art, open-source research methods for detecting AI-generated images, videos, and audio. The platform serves a dual purpose: for researchers, it offers a testing ground to evaluate detection methods against real-world data; for public users, it provides a free tool to experiment with and better understand recent advances in synthetic media detection. It is important to note that the incorporated detection methods are research prototypes and may not always produce accurate or consistent results. These outputs should be interpreted with caution and in appropriate context. DeepFake-o-meter does not assume responsibility for any inaccuracies or misclassifications generated by individual detection modules used within the platform.