📱 HEIC to JPG

Someone sent me the photo that wouldn't convert, and it turned out my converter was the problem. Newer iPhones save HDR photos as a HEIC with a gain map tucked inside, and the decoder I was using — the only one I was using — flatly refuses to read those. So your perfectly good photo came back as "couldn't be converted". There are three decoders now: your browser first (Safari can do this itself, and it's instant), then the old one, then a current build of libheif that reads the HDR files. If all three somehow fail, the page now tells you what each one actually said instead of just shrugging.

Someone told me the page just sat there doing nothing. They were right, and it was my fault twice over: if you picked a photo that wasn't HEIC, the page silently swallowed it, and if a file failed to decode, the Download button was still sitting there doing absolutely nothing when you tapped it. Now it tells you what happened either way — which file it skipped, and why — and the Download button only lights up when there's actually something to download.