HEIC → PNG: Fast, Secure, No Upload
Convert HEIC to PNG without sending your file anywhere. Everything happens locally in your browser — fast, secure, and quality-preserving.
Drag & drop your files
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Images · Documents · Archives — processed locally, never uploaded
Why our HEIC to PNG converter is different
Lightning fast
Most HEIC files become PNG in under a second. No upload queue, no waiting room.
Private by default
Your HEIC never touches our servers. The whole conversion runs locally in your browser.
Pixel-perfect quality
Resolution and content are preserved end-to-end. The PNG output is exactly what your file deserves.
Works everywhere
Any modern browser on desktop, tablet, or phone. Nothing to install, nothing to update.
How it works
Three steps. No accounts, no uploads, no nonsense.
Drop your HEIC
Drag a HEIC into the dropzone, or paste it from your clipboard.
Convert to PNG
Your browser re-encodes the file locally. Nothing is sent over the network.
Download your PNG
Grab the finished PNG as soon as it's ready. Convert another in one click.
About converting HEIC to PNG
The transition from HEIC (High Efficiency Image Coding) to PNG (Portable Network Graphics) represents a shift from a modern, highly compressed storage format to a legacy, lossless production format. HEIC was adopted by Apple in iOS 11 as a way to leverage the HEVC video codec for still imagery, effectively halving file sizes compared to JPEG without sacrificing visual fidelity. However, the complexity of the HEIC container—which utilizes a sophisticated tiling system and advanced inter-frame prediction—makes it difficult for older operating systems, web browsers, and specialized design software to render. Users typically convert to PNG when they need to bridge this compatibility gap while ensuring that the image does not undergo further lossy compression. Unlike JPEG, PNG provides a robust destination for HEIC data because it supports the same 16-bit color depth and alpha transparency channels often found in high-end HEIC captures, making it the preferred choice for developers, graphic designers, and archivists who require pixel-perfect reproduction of their mobile photography for web deployment or print layout.
When you'd convert HEIC to PNG
Converting HEIC to PNG is a standard requirement for professional workflows where image integrity is paramount. While JPEG is often used for social media, PNG is the industry standard for web developers who need to implement images with transparency—such as logos or objects cut out from a background—into a website’s CSS. If you have captured an image on an iPhone with a transparent background (frequently seen in 'stickers' or masked objects), PNG is one of the few legacy formats that can accurately map the HEIC alpha channel. Additionally, engineers and technical writers often convert HEIC screenshots to PNG for inclusion in documentation or GitHub repositories, as PNG’s lossless nature ensures that text and UI elements remain crisp and readable, avoiding the 'mosquito noise' artifacts that JPEG would introduce. Another common scenario is importing HEIC images into older versions of Adobe Creative Suite or Microsoft Office (pre-2019 versions), which lack the native decoders required to parse the HEVC bitstream within the HEIC container.
What changes under the hood
At the byte level, HEIC is an ISO-based media file format (BMFF) that stores image data in 'items' and 'extra properties' rather than a linear stream. It uses HEVC (H.265) intra-coding, which processes blocks of pixels using spatial prediction. PNG, conversely, is a bitmapped format based on the 'chunk' architecture. During conversion, the HEVC-encoded bitstream within the HEIC must be fully decoded into a raw YUV or RGB buffer. Because HEIC often uses YCbCr 4:2:0 chroma subsampling, a color space conversion to the RGB model used by PNG is required. A critical technical detail is the handling of bit depth: modern iPhones can capture 10-bit or 12-bit HEIC files. To prevent banding, these should be mapped to 16-bit PNGs. PNG uses a 'predictor' filter (None, Sub, Up, Average, or Paeth) on every scanline before applying DEFLATE compression. This results in a file that is mathematically lossless but significantly larger—often 5x to 10x the size of the source HEIC.
Tips for the best PNG output
- →Check if your HEIC file contains multiple images; most converters only extract the 'primary' frame, so you may lose secondary 'Burst' shots.
- →If you are converting for web use, ensure the output PNG is converted to the sRGB color profile, as the native Display P3 profile of many HEICs may display incorrectly in non-CMS browsers.
- →Use 16-bit PNG settings if your source HEIC was shot in 'ProRAW' or HDR, otherwise, you will discard significant luminance data during the bit-depth downsampling.
- →Be prepared for a significant increase in storage requirements; a 2MB HEIC file creates a much larger footprint as a lossless PNG.
- →If the HEIC has a depth map for 'Portrait Mode', note that standard PNG conversion will flatten this, losing the ability to adjust blur in post-processing.
Frequently asked
Does HEIC use the same compression algorithm as PNG?+
HEIC is a 'container' format based on HEIF. While the container can support various codecs, Apple uses the HEVC (H.265) video codec to compress image data. PNG uses DEFLATE (LZ77 and Huffman coding) which is entirely different. Converting means decoding the HEVC stream and re-encoding the pixel grid into the PNG filter-based scanline system.
Will my transparent backgrounds be preserved during conversion?+
While both support transparency, they handle it differently. HEIC uses an alpha mask often stored as a separate auxiliary image within the file. PNG integrates the alpha channel directly into the pixel data (RGBA). Our converter parses the HEIC auxiliary item and maps it to the 8-bit or 16-bit alpha channel of the PNG.
Why do some HEIC to PNG conversions look duller in color?+
Most HEIC files from modern iPhones are captured in Display P3, which has a wider gamut than standard sRGB. When converting to PNG, we preserve the ICC color profile metadata so that the colors don't appear 'muted' or 'washed out' when viewed in software that supports color management.
Is there any quality loss when moving from HEIC to PNG?+
HEIC is lossy (storing data via discrete cosine transform), whereas PNG is strictly lossless. Converting to PNG will not 'restore' data lost during the original HEIC capture, but it will prevent any further degradation. The resulting PNG will be significantly larger because it is storing the decoded HEIC data without further lossy compression.
What happens to the 'Live' portion of a HEIC photo when converted?+
HEIC can store a sequence of images (like a Live Photo) or a burst in a single file. A standard PNG is a single-frame format. In most cases, the converter will extract the 'primary' image representative. If you need all frames, you would typically need to convert to an APNG (Animated PNG) or a series of numbered PNG files.
Is EXIF data like GPS coordinates and timestamps kept?+
Yes, HEIC follows the High Efficiency Image File Format standard which dictates how EXIF, XMP, and IPTC metadata are embedded. We extract these metadata blocks from the HEIC header and inject them into the corresponding PNG chunks (like 'zTXt' or 'iTXt'), ensuring your GPS data and camera settings remain intact.
Are my HEIC files uploaded to a server?+
No. The conversion happens entirely in your browser using local Web APIs. Your HEIC file never leaves your device, which is why this tool is safe for sensitive content.
Is this HEIC to PNG converter really free?+
Yes. There's no paywall, no signup wall, and no per-file fee. You get unlimited HEIC-to-PNG conversions when signed in, and a generous free quota without an account.