For more information about using HEIR to JPG on iOS, macOS, or Windows, click here. Note: If this is your first conversion, read our FAQ. If you would like instructions for how to convert HEIR to JPG on iOS, macOS, or Windows, please check out the Converting HEIR to JPG with Coltrane post. Please note that converting HEIR to JPG on iPhone, iPad, and/or iPod touch involves the same steps as Converting HEIR to JPG on Windows or Converting HEIR to JPG on macOS.