Convert HEIC to PNG
Convert HEIC photos to lossless PNG format — 100% free, instant, and private. All transcoding runs locally inside your browser.
How to Convert HEIC (.heic) to PNG (.png)
Load Your .HEIC File
Drop your .heic file into the workspace above or click to browse local storage.
In-Browser Transcoding
Click Convert to PNG. Our client-side engine decodes the source and builds the .png output in RAM.
Save .PNG Instantly
Download your converted .png file immediately—no signup, no queue, no watermarks.
Technical Transcoding Pipeline: .HEIC → .PNG
While HEIC to JPG uses lossy Discrete Cosine Transform (DCT) compression, converting HEIC to PNG decodes the HEVC intra-frame bitstream via `libheif` WebAssembly into an uncompressed 32-bit RGBA pixel buffer (`Uint8ClampedArray`) and compresses it losslessly using PNG’s Paeth/Sub/Up/Average scanline delta filters followed by RFC 1951 `DEFLATE` compression (`89 50 4E 47 0D 0A 1A 0A`).
Color Space, Compression & Data Fidelity Considerations
PNG is a 100% lossless raster format that supports a full 8-bit or 16-bit alpha transparency channel (`IHDR` color type `6`). If your `.heic` file is an iOS sticker cutout, portrait segmentation mask, or graphic containing an auxiliary alpha plane, transcoding to `.png` preserves transparent backgrounds and pixel-exact sharp edges without introducing JPEG 8×8 macroblock ringing artifacts.
Common Production Workflows for HEIC to PNG Conversion
- Preserving transparent backgrounds on iOS "Lift Subject from Background" photo cutouts
- Converting iPhone screenshots and UI captures to lossless `.png` with crisp typography and zero JPEG artifacts
- Creating lossless intermediate masters from iPhone captures before importing into older versions of Photoshop, Vegas Pro, or DaVinci Resolve
- Archiving medical, forensic, or scientific reference photos captured on iOS without secondary generation loss
Frequently Asked Questions — HEIC to PNG
When should I convert HEIC to PNG instead of HEIC to JPG?
Choose **HEIC to PNG** whenever your image contains transparency (like an iOS subject cutout), sharp text/UI screenshots, or when you plan to edit the image further and want zero generation loss. Choose **HEIC to JPG** for smaller file sizes on standard camera photos.
Why is the converted PNG file larger than the original HEIC file?
HEIC uses advanced lossy H.265 video intra-frame compression, whereas PNG uses lossless DEFLATE compression. A 2.5 MB 12-megapixel HEIC photo expands to 36 MB of raw RGBA pixels in memory and compresses losslessly to roughly 10–15 MB as a PNG.
Does this converter preserve transparent backgrounds from iPhone cutouts?
Yes! Auxiliary alpha planes stored in the HEIC container are mapped directly to the PNG RGBA alpha channel.