Darktable
darktable is an open source photography workflow application and raw developer.
18 Alternatives To Darktable
ACDSee
ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won’t take up much space on your system.
ACDSee Photo Studio
ACDSee becomes ACDSee Photo Studio — ACDSee Photo Studio Standard 2018 continues the ACDSee legacy
Adobe Photoshop Lightroom CC
Adobe Photoshop Lightroom CC is a commercial photo processor and image organizer.
Corel AfterShot Pro
Say hello to Corel AfterShot Pro 3, the world’s fastest photo workflow tool! Edit your photos up to 4x faster than Lightroom so you can spend more time behind the camera.
Gravit Designer
A cross-platform vector graphics tool, runs as desktop application and in-browser too.
Krita
Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
LightZone
LightZone is a digital photo editor software application.
Photoscape
high quality photo editing software, that enables you to fix and enhance photos.
RawTherapee
RawTherapee is a free RAW converter and digital photo processing software.