RawTherapee is a free, open-source, raw image processing program that is available for Linux, Windows and Mac.
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About RawTherapee is a powerful, cross-platform raw photo processing system, released as Free Software (GPLv3). It is designed for developing raw files from a…
www.rawtherapee.com
What the creators say about Rawtherapee
QuoteIt is designed for developing raw files from a broad range of digital cameras and targeted at users ranging from enthusiast newcomers who wish to broaden their understanding of how digital imaging works to professional photographers.