Photivo

darktable is an open source photography workflow application and raw developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them. Having developers that are also avid photographers as part of the target audience is good for understanding the real world problems, challenges, and workflows. darktable edits your images non-destructively all the way through its pipeline. Your original image is never modified! Professional color management features ensure fidelity all the way to print and GPU accelerated processing means you can speed up your workflow using your video card. You do not need to write code to be involved in the darktable community! You can help other users by providing your input on the mailing list or the forum. If you'd like to show others what darktable is capable of, contribute to the Flickr page.

digiKam is an advanced open-source digital photo management application that runs on Linux, Windows, and macOS. The application provides a comprehensive set of tools for importing, managing, editing, and sharing photos and raw files. You can use digiKam’s import capabilities to easily transfer photos, raw files, and videos directly from your camera and external storage devices (SD cards, USB disks, etc.). The application allows you to configure import settings and rules that process and organize imported items on-the-fly. digiKam organizes photos, raw files, and videos into albums. But the application also features powerful tagging tools that allow you to assign tags, ratings, and labels to photos and raw files. You can then use filtering functionality to quickly find items that match specific criteria. digiKam features powerful searching capabilities that let you search the photo library by a wide range of criteria.