Since iOS 11, iPhones save pictures in HEIC file type by standard. HEIC — High Efficiency Image Format — is highly efficient: it generates images with approximately 50 percent less storage of comparable JPEGs maintaining excellent visual quality.
But there is a significant catch. HEIC is an Apple-centric format that is not widely supported outside the Apple ecosystem. Windows PCs, non-Apple phones and most online services cannot display HEIC photos with no extra apps.
Converting HEIC to JPG is the necessary step making iPhone pictures universally shareable. Frequent cases needing conversion involve sharing photos to Windows users, posting pictures to online platforms without support for HEIC.
Mac users enjoy the simplest method. Open the HEIC image in Preview, go to File, website then Export and choose JPEG as the format.
On Windows, online conversion tools manage HEIC to JPG converting with no setup. Add the HEIC image and download the converted JPG.
Use alljpgconverters.com offering a totally free browser-based HEIC to JPG tool requiring no software needed.