Convert HEIC photos to PNG without uploading them
iPhones and iPads save photos in HEIC format to save storage, but many websites, Windows PCs and older apps can’t open them. This converter turns HEIC and HEIF files into widely supported, lossless PNG images that open anywhere.
How it works
When you add files, the tool lazy-loads the heic2any WebAssembly decoder and runs it directly in your browser. Each photo is decoded from its HEVC-compressed HEIC data and re-encoded as a PNG, which stores every pixel without loss and keeps an alpha (transparency) channel. Because PNG is lossless there is no quality slider — the output is a faithful copy. The converter reports the original and output file size and creates an in-browser download link for each result. Nothing is uploaded; the files stay on your device the whole time.
Example
Convert a 12-megapixel iPhone photo:
- Input:
IMG_4821.HEIC— about 1.8 MB - Output:
IMG_4821.png— about 9 MB (lossless, larger)
PNG is the right choice for screenshots, graphics, and archival quality; if you need a smaller file for email or the web, convert to JPG or WebP instead.
| Format | Compression | Transparency | Typical use |
|---|---|---|---|
| HEIC | Lossy, very small | Yes | iPhone storage |
| PNG | Lossless, larger | Yes | Quality, graphics |
| JPG | Lossy, small | No | Photos, sharing |
Everything runs locally in your browser — your photos are never uploaded, stored, or seen by anyone.