The best replacement for raw files is jpeg.

The best alternatives to raw files are rated as following:
★★★★★  jpeg
★★★  tiff
★★★  jpeg files
★★  .dng
★  dng

Your alternative for raw files is not listed? Suggest!
Speaking about raw files, one probably shouldn't forget about gimp.

Other search terms related to raw files and their ratings are:
★★★★★ gimp
You have in mind a companion for raw files and it is not yet here? Propose!



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raw files
jpeg
tiff