HEIF is the container format behind HEIC, used by modern phones and cameras. Files end in .heif or .heic, and they save photos in much less space than JPG, but many apps and websites cannot open them. Converting HEIF to PNG gives you an exact, lossless copy that keeps transparency.
PNG is lossless, so every pixel is kept exactly, and it supports transparency. That makes it the safe choice for screenshots, logos and graphics. PNG files are larger than JPG or WebP for photographs, so use it when exactness or transparency matters more than size. This converter reads HEIF in your browser. Safari handles it directly. Other browsers download a small decoder the first time you add a HEIF file, then convert on your device. Large photos can take a moment.
PNG is lossless, so there is no quality setting. The pixels are kept as they are. The pixel dimensions follow the original, each file keeps its name with only the extension swapped, and no metadata or watermark is added. Everything runs in your browser, so your images are never uploaded.
Tip: JPG is the safe choice for sharing, because every device and website opens it. Pick High or Max quality to stay close to the original.
Not with PNG. It is lossless, so the pixels are kept exactly as they are.
Photos have no transparency. If a HEIF file has an alpha channel, PNG and WebP keep it, and JPG fills it with white.
They are closely related. HEIC is the common variant that phones produce, and HEIF is the broader format. This tool converts both.
Yes. Add them all, convert once and download a single ZIP. Only the extension changes. A photo named holiday.heif becomes holiday.png.
No. The conversion happens in your browser and the files never leave your device.