Starting with iOS 11, iPhones save photos in HEIC file type by default. HEIC — High Efficiency Image Container — is a great format: it generates images with about half the file size of comparable JPEGs maintaining excellent visual quality.
However there is a major issue. HEIC is an Apple-centric format which is not broadly compatible away from the Apple devices. Windows PCs, Android phones and most online services cannot display HEIC photos lacking additional software.
Changing HEIC to JPG is the necessary process which makes iPhone pictures usable on all devices. Frequent cases where this becomes a problem include more info sending iPhone photos to Windows users, uploading photos to websites that do not accept HEIC.
Mac users have the easiest process. Just open the HEIC photo in Preview, select File, then Export and choose JPEG as the output format.
For Windows users, online conversion tools handle HEIC to JPG converting with no downloads. Upload the HEIC photo and get the resulting JPG.
Visit alljpgconverters.com providing 100 percent free browser-based HEIC to JPG converter requiring no account required.