Starting with iOS 11, iPhones have saved photos in HEIC file format by default setting. HEIC — Apple's HEIC format — is highly efficient: it generates pictures with about half the storage of comparable JPEGs while keeping great image quality.
However there is a major catch. HEIC is an Apple-centric file type not broadly compatible beyond the Apple ecosystem. Windows PCs, non-Apple phones and most online services do not support HEIC files without special programs.
Transforming HEIC to JPG is the necessary step making iPhone pictures universally shareable. Frequent cases needing conversion are sending iPhone photos to non-Apple users, adding images to websites incompatible with HEIC.
People with Macs enjoy the simplest method. Open the HEIC photo in Preview, more info go to File, then Export and pick JPEG as the output format.
Windows PC users, web-based converters handle HEIC to JPG converting without any setup. Upload the HEIC photo and download the finished JPG.
Visit alljpgconverters.com for a totally free browser-based HEIC to JPG solution with no account required.