HEIC to JPG

HEIC stores images with HEVC compression, and HEVC decoding is patent encumbered. Microsoft sells the HEVC Video Extensions separately instead of bundling them, so a fresh Windows install simply can't render the format. Converting the iPhone photo to JPG sidesteps the licensing problem entirely.

No. The decoder is a WebAssembly build of libheif that executes inside your browser tab, so the photo bytes stay on your machine. The only network activity is downloading the decoder module itself the first time you use the page.

Yes, the uploader accepts multiple files and processes them in sequence when you press the button. Each result downloads separately under its own filename. Large batches work fine, though a big photo can take a few seconds to decode.

Output is encoded at 92 percent quality, which keeps files reasonably small while making compression loss very hard to see in normal photos. There's no slider to change it. If you need pixel exact output instead, use the HEIC to PNG tool.

Each file can be up to 50 MB. A typical iPhone photo lands between 1 and 4 MB, so the ceiling mostly matters for burst captures or 48 megapixel shots, and those still fit comfortably.

Open Settings, tap Camera, then Formats, and switch from High Efficiency to Most Compatible. The camera will record JPEG from then on, at the cost of roughly double the storage per shot. Many people keep HEIC for the space savings and just convert the occasional file that needs to travel.

No, and it's worth knowing before you archive anything. The conversion redraws decoded pixels onto a canvas, which produces a clean image but discards EXIF data such as GPS coordinates and capture time. Keep the original HEIC if that metadata matters to you.