Darktable - darktable is an open source photography workflow application and raw developer.
RawTherapee - RawTherapee is a free RAW converter and digital photo processing software.
Adobe Photoshop Lightroom Classic - Adobe Photoshop Lightroom Classic is a desktop-based commercial photo processor and image organizer.
UFRaw - The Unidentified Flying Raw conversion utility
photivo - Photivo is a multi platform photo processor for RAW and bitmap images with 16 bit precision.
LightZone - LightZone is a digital photo editor software application.