Convert HEIC to PNG on your device when you need an iPhone photo in a lossless format. PNG stores the decoded pixels exactly, so nothing more is lost on the way, which suits photos you are about to retouch, crop for print or place in a design tool that will not take HEIC. The trade is file size, and for simply sharing a photo, JPG remains the practical choice. The HEIC decoder runs in your browser, there is no quality setting to get wrong, and the photos are not uploaded anywhere.
How it works
- Drop the HEIC or HEIF photos. The decoder, about 1 MB, loads the first time one is converted or previewed.
- PNG is preselected, and the quality slider is switched off: PNG is lossless, so there is nothing to tune.
- Press Convert & download. Each photo saves as name-converted.png; a batch arrives as one ZIP.
Questions
- Is PNG or JPG better for HEIC photos?
- For sharing, JPG: it is much smaller and every app accepts it. PNG is better when the photo will be edited further, because it adds no compression loss of its own, while a JPG at 90% adds a little. Neither brings back detail the HEIC compression already removed, so a PNG is not sharper than the original.
- Why is the PNG so much larger than the HEIC?
- HEIC uses the same kind of lossy compression as modern video, which is very efficient for photos. PNG is lossless, so it stores every pixel, including the fine grain a camera sensor produces, and grain compresses poorly. Expect several times the size for a photo; for screenshots and flat graphics the gap is much smaller.
- Can I convert many HEIC photos to PNG at once?
- Yes, up to 200 files or 2 GB per batch. They are converted one after another on your device, and the download is a single ZIP holding every PNG plus a report listing each photo, including any that failed and why.
- Does my file get uploaded?
- No. The models and all processing run inside your browser on your own device. You can verify this yourself: open your browser’s DevTools, watch the Network tab, and process a file: there are no uploads. After the first visit most tools also work fully offline.
- How are RAW files converted?
- Honestly: RAW files carry a full-size JPEG preview rendered by the camera, and that is what this tool extracts, instantly and losslessly. It does not demosaic the sensor data; a RAW developer with your own processing choices is the right tool for that.
- Why does HEIC need a special decoder?
- Browsers do not decode HEIC, so this page ships an open-source decoder (libheif, compiled to WebAssembly) that runs on your device. The photo itself still never leaves your machine.