Process Raw Image Files for Free with RawTherapee

If you use GIMP as a Photoshop alternative, but would like a free program to handle the processing of Raw image files as well, check out RawTherapee. It’s a free raw image processing program that has a polished user interface and a solid list of features. Unless you want to compile the source code yourself, you can download the latest version of the program from this page. It’s available for Linux and Windows, though Mac OSX versions are available too (though they might not be as stable).

  • Matt

    I tried this program about a year ago in the hopes of not having to install the full Canon software suite just to do basic RAW editing. The main problem that I had with it was there wasn’t a way to adjust the white balance using the in-camera presets (fluorescent, incandescent, etc.) like the Canon software can. There are white balance adjustment though, just not what I was hoping for. I think I also had problems with the image brightness compared to the Canon software. I’ll have to try it again and see what the newer versions are like.

  • Michael Zhang

    Thanks for sharing your experiences. =)

  • Heber Coll

    I tried this as well but it has a major problem, the image preview is of very low quality, looks very grainy, making it impossible to judge stuff like exposure, sharpness, noise, etc.

  • Michael Zhang

    Have you tried waiting to see whether or not it clears up after a while? If it does clear up, it might be because the program is CPU intensive.

    Some things were sluggish for me as well even though my computer is normally pretty snappy.

  • Christian Ide

    This is a “feature”. The preview is just a fraction of the original image because it renders much faster. This is just to control colors, exposure etc. To see the details, sharpness etc. you have to switch on the detail window.

  • Gabsriel

    Darktable is better ! An excellent program.

  • Brooks Ayola

    Show a Mac screen shot then downplay the existence of a Mac version? :-)

  • Christian Ide

    I use RawTherapee for a few years now with a Nikon D70s and a D3000. It seems a bit complicated at the beginning but after creating my own profiles it is a very efficient tool. Normally I just need to choose the desired profile with a set of curves, contrast, sharpness etc. and different setting of noise reduction and just correct the exposure and highlight/shadows afterwards. After many comparisons I also see a much greater level of fine details and sharpness compared to Nikon’s own converters because of RTs very good demosaicing.

  • Michael Zhang

    Thanks for the clarification

  • Michael Zhang

    Haha. The screenshot is from my testing of the program. Ran into some bumps (e.g. the program wouldn’t close), so I decided to just restate what’s said on Wikipedia regarding the compatibility:

    Other Mac users may have more luck though =)

  • Jac

    I prefer UfRAW to process raw files, has better noise reduction IMHO.

  • Robert Shaver

    Downloaded the 64 bit Windows 7 version. Downloaded file appears to be a compressed folder. No readme or installation instructions. Trying to extract the contents gave the error message something like, “jZip unable to extract contents”. It was late. I may take another look at it tonight.

  • myimage

    Process Raw Image Files for Free with RawTherapee – — luv it

  • myimage

    I am sure what’s the program can do ……but it’s seem to useful a lot.Will download it and try