Tropy

Tropy may refer to several concepts, most notably a free, open-source desktop application for organizing and annotating research images.

Tropy is designed for researchers working with archival imagery. It allows users to collect images from various sources, organize them into projects, attach structured metadata (such as title, date, source, and location), add notes and tags, and export metadata for use in publications and data analyses. The software emphasizes portability of projects, enabling sharing as a package containing images and metadata; it runs on Windows, macOS, and Linux.

As a software project, Tropy is maintained by a community of contributors and is distributed under an open-source license.

Beyond software, the term tropy appears in scientific vocabulary deriving from the Greek tropos, meaning turning or turning toward, and is found in words such as tropism and related terms.