HEIC to PNG Converter
Convert HEIC photos to lossless PNG images locally on your device.
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How to Use HEIC to PNG Converter
- 1Select your iPhone HEIC / HEIF image file.
- 2The browser decodes the image container into raw pixel buffers.
- 3Encodes pixel data into lossless PNG format retaining maximum clarity.
- 4Download your lossless PNG file instantly.
Technical Specifications & Capabilities
| Input Formats | HEIC, HEIF |
|---|---|
| Output Format | PNG |
| Transparency Support | Preserved (Full alpha channel retained) |
| Compression Type | Lossless (DEFLATE compression) |
| Processing Engine | Browser WebAssembly Decoder + HTML5 Canvas |
| Max File Size Limit | 25 MB per file limit |
| Max Pixel Boundary | 50 Megapixels maximum boundary |
Common Use Cases
- •Converting iPhone portraits or graphics into lossless PNGs for presentation slides.
- •Preserving exact pixel data for graphic design and image editing workflows.
- •Extracting Apple camera photos for vector graphic overlays.
Zero Upload Privacy Architecture
PixelLocal operates entirely within your browser memory. When you select a photo, your browser decodes and processes the pixel data locally using HTML5 Canvas and WebAssembly. Your files are never transmitted over the internet, logged, or stored on remote servers.
Troubleshooting & Known Limitations
- ⚠️If the output PNG file size is unexpectedly large, consider using PNG to WebP or Compress Image.
- ⚠️Verify that browser hardware acceleration is enabled if processing high-megapixel photos.
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Frequently Asked Questions
Does PNG preserve full visual quality from HEIC?
Yes. PNG uses lossless DEFLATE compression, preserving every decoded pixel without introducing lossy compression artifacts.
Will PNG preserve transparency in HEIC files?
Yes. If the source HEIC image contains an alpha transparency channel, it is fully preserved in the output PNG file.