Photo software for Linux

digiKam is a free and open-source image organizer and tag editor written in C++ using the KDE Frameworks.

Darktable (stylized as darktable) is a free and open-source photography application and raw developer. Rather than being a raster graphics editor like Adobe Photoshop or GIMP, it comprises a subset of image editing operations specifically aimed at non-destructive raw image post-production. It is primarily focused on improving a photographer's workflow by facilitating the handling of large numbers of images. It is freely available in versions tailored for most major Linux distributions, macOS, Solaris and Windows and is released under the GPL-3.0-or-later software license.

stitching software

gThumb is a free and open-source image viewer and image organizer with options to edit images. It is designed to have a clean and simple user interface and follows the GNOME Human Interface Guidelines and integrates well with the GNOME desktop environment.

RawTherapee is a free and open source application for processing photographs in raw image formats such as those created by many digital cameras. It comprises a subset of image editing operations specifically aimed at non-destructive post-production of raw photos and is primarily focused on improving a photographer's workflow by facilitating the handling of large numbers of images. It is notable for the advanced control it gives the user over the demosaicing and developing process. It is cross-platform, with versions for Microsoft Windows, macOS and Linux.

UFRaw (originally named after its founder '''Udi Fuchs's Raw, the backronym Unidentified Flying Raw''' replaced it as the full name) is an application which can read and manipulate photographs in raw image formats, as created by many digital cameras. UFRaw is available as both as a stand-alone program and as a plugin for GIMP (only on non-Microsoft Windows systems). As a stand-alone program, UFRaw can be invoked with a graphical interface, or as a command line batch processing utility.

dcraw is an open-source computer program which is able to read numerous raw image format files, typically produced by mid-range and high-end digital cameras. dcraw converts these images into the standard TIFF and PPM image formats. This conversion is sometimes referred to as developing a raw image (by analogy with the process of film development) since it renders raw image sensor data (a "digital negative") into a viewable form.

gPhoto is the name of a free, redistributable, ready to use set of digital camera software applications for Unix-like systems. The core functionality is provided by libgphoto2, which is a library for use in digital photography - it supports retrieving of images from camera devices, upload, and remote controlled configuration and capture, depending on whether the camera supports those features. libgphoto2 is the successor of gphoto with lots of new features and additional camera drivers.

Rawstudio is a free and open source stand-alone application software to read and manipulate images in raw image formats from digital cameras. It is designed for working rapidly with a large volume of images, whereas similar tools are designed to work with one image at a time.

suite of programs and libraries originally written by the German physics and mathematics professor Helmut Dersch