The privacy problem with "online HEIC converters", and how running libheif in the browser fixes it. If you've ever helped a non-technical person get an iPhone photo to open on a Windows laptop, you've hit HEIC. Since iOS 11, iPhones save photos as .
Source: [Dev.to](https://dev.to/ritusmoikaushik/i-built-a-heic-to-jpg-converter-that-never-uploads-your-photos-webassembly-libheif-291m)