I totally agree that if you only save to JPEG that GIMP already has a workable solution for that (spare the observed “clear extra metadata” option, I haven’t found that either). Something I do not see discussed yet though, and am curious if anyone has any solutions as this conversation seems to constantly be the top hit when I search for a workaround, is that Save for Web also did 8-bit PNG in a way that GIMP doesn’t seem to have an interface for.
It seems, if I want to compare options that involve 8-bit PNG, the fastest process without Save for Web is to duplicate the image, play around with indexed mode on one image, start saving that as PNG and make note of the size, go back to the original, compare to what JPEG can achieve with which settings, and then if there’s any question which is going to be better I have to undo and redo the indexing to play around with different options (what happens if I use web colors, what if I do that with dithering, is that more efficient than pick 256 best colors? What if I only really need 8 colors total, how does that compare?).
It would be nice to see a JPEG remove EXIF and stuff saving option, but that really only solves part of the problem. One of the benefits to Save for Web is not only that it elegantly previews JPEG images and removes stuff you typically don’t want to upload, it also lets you jump back and forth between formats and compare output size at relevant settings (so, since it’s assumed you care about file size, several controls that are guaranteed to always hurt file size just aren’t there) between formats.
I have had many cases where this is a vital feature of GIMP that has me wondering what I will do once I move to a *buntu version that doesn’t package 2.8 or older (or once I find a 2.10+ feature I need for something), and it feels like everywhere I see discussions people talk about Save for Web as if it were only about exporting to JPEG. Anyone have any thoughts on rapid comparison between export types and fast/easy toggling of different 8-bit PNG settings?
(I do agree the plugin is ancient and would benefit from replacement. I’d love to see it redone, perhaps with no perpetually disabled JPEG2000, merge the PNG settings together and make the 8-bit a toggle, and maybe add a couple newer formats like WebP into the mix, but I don’t have the coding skills to do that and I don’t know where to find someone who both has that and wants this feature badly enough.)