Also adding my name on that topic, since I need Preview export as a Web Dev. I bumped another topic on the similar subject.
I'm coming back to those topics because I'm about to switch back to PC (from Mac). I did test the app about a year ago and decided to use Pixelmator Pro (Mac version is very good and not expensive) for now, as that one did have export preview.
I'm now looking for a PC software to use (that supports PSD file and export preview for the web) and if anyone have a decent one to suggest, let me know. Might not be the greatest idea to talk about other software on this forum and I apologize for that, but when someone needs a specific tools for a job, surely he can ask fellow colleague for their preferences, right?
EDIT: You know, I've been seeing posts about FastStone Image Viewer. Having to use multiple program for one job is never ideal, takes more time to do simple task.
I understand that this might be a solution, perhaps not the best one but still one, and likewise there are multiple image optimizer online offering lossless image optimization and such. Perhaps it's time to streamline my work via an online tool... I might give this anoter try once I get my new PC.