HEIC to PNG Converter (100% In-Browser & Private)
Convert Apple iPhone HEIC photos to high-resolution PNG images safely in your browser.
Privacy First: 100% Client-Side Processing
Processed in your browser. Files are never uploaded.
How to Use the HEIC to PNG Converter
- 1Drag and drop one or more .heic or .heif photos from your iPhone or Mac.
- 2Select batch processing or configure custom resolution scale.
- 3Click 'Convert to PNG' to render lossless PNG files directly on your device.
- 4Download converted images individually or save all files in one click.
Formula & How It Works
Client-Side HEIC Decoding Method
HEIC files are decoded locally using client-side JavaScript Web Workers and rendered onto an HTML5 Canvas element before being exported as standard Portable Network Graphics (PNG) data blobs.
Worked Examples
iPhone Portrait Photo
Input: IMG_4901.HEIC (3.2 MB)
Explanation: Preserves original 12MP/48MP full-sensor details with sharp edge fidelity.
Batch Photo Conversion
Input: 5 iPhone vacation photos (.HEIC)
Explanation: Converted in parallel using browser multi-threading.
Frequently Asked Questions
Why does Apple use HEIC format?▼
Apple uses HEIC (HEIF format with HEVC compression) because it provides equal or better visual quality than JPEG at roughly half the file size.
Are my photos uploaded to your server?▼
Never. All decoding and conversion takes place entirely on your device using client-side JavaScript. Files never touch any external server.
Can I open PNG files on Windows and Android?▼
Yes, PNG is an open standard supported natively by virtually every operating system, photo viewer, and website on earth.
Is there a file size limit?▼
You can convert photos up to 50 MB each, depending on your device's available browser memory.
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