Tropy is a photo library management tool designed with researchers in mind. It provides features for group photos in documents (e.g., for scanned images of multi-page works), to annotate or transcribe photos, add custom tags to photos, and more. Users can then use annotations, tags, and transcriptions to search their photo library and quickly find items of interest. In addition, Tropy can export data in JSON-LD format, or even into the Omeka S digital exhibition software. The Tropy website promises that users will be able to "spend more time using your research photos, and less time searching for them." The documentation section on the Tropy website provides a getting started guide and a number of suggested workflows for utilizing the software. Tropy is available for Windows, macOS, and Linux. Tropy is free software, licensed under the GNU Affero General Public License, with source code available on GitHub.