When to convert HEIC to PNG
PNG is the right target when you plan to edit the photo several times, place it in a design, or work in an app that accepts PNG but not HEIC. Because PNG is lossless, re-saving it never adds compression artifacts. It is also a common choice for screenshots and images that will be cut out later.
For everyday sharing, choose HEIC to JPG instead. A PNG of a photo is usually several times larger than a JPG.
How the conversion works
Upload the HEIC file. It is decoded on the server, rotated upright using the orientation stored by the camera, and saved as a PNG at its full dimensions. The color profile is kept. There's no quality slider, because PNG output is lossless.
Browsers can't display HEIC, so the original side of the preview shows a placeholder while the PNG appears on the other side.
File size and metadata
Expect a large file. A full-resolution iPhone photo as PNG can easily be several times the size of the HEIC. If that is too big, resize it with the Image Resizer afterwards. EXIF data, including GPS location and camera details, is not copied into the PNG.
Using the PNG in an editing workflow
A typical use is preparing a photo for a design: convert it to PNG, remove or replace the background, add text, then export the final version in whatever format the destination needs. Keeping a PNG as the working file between steps avoids repeated lossy compression. When the design is finished, save the final copy as JPG or WebP for sharing, since those are much smaller.
HDR brightness information from newer iPhones isn't carried over, so the PNG is a standard 8-bit image that displays the same everywhere.