From iOS 11 onwards, iPhones have saved images in HEIC format by default setting. HEIC — High Efficiency Image Container — is a great format: it produces images with about half the storage of equivalent JPEGs while keeping high photo quality.
But there is a major problem. HEIC is an Apple-specific file type not widely supported beyond the Apple environment. PC users, non-Apple phones and most web platforms cannot open HEIC files without additional software.
Converting HEIC to JPG is the essential step that makes iPhone photos compatible everywhere. Typical situations that require conversion are sharing photos to PC users, adding images to online platforms without support for HEIC.
Mac users have the easiest conversion path. Just open the HEIC photo in Preview, select File, then Export and choose JPEG as the format.
For Windows users, online conversion tools process HEIC to JPG converting without any software installation. Select the HEIC image here and save the converted JPG.
Use alljpgconverters.com for a completely free web-based HEIC to JPG tool with no download needed.