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HEIC to PNG Converter

Convert HEIC and HEIF images to lossless PNG online for free. Fast, simple, and secure.

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Maximum file size: 50 MB

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Your HEIC image has been successfully converted to a PNG image.

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1 Select HEIC
2 Convert to PNG
3 Download PNG

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How to convert HEIC to PNG

  1. Upload one or more HEIC or HEIF files (up to 50 MB total).
  2. Click 'Convert to PNG' — conversion finishes in under 3 seconds per image.
  3. Download PNG files individually, or grab all converted images as a ZIP.

Quick fact about HEIC

PNG is a lossless format, so HEIC-to-PNG conversion preserves 100% of the decoded image data — but PNG files are typically 3-5x larger than the original HEIC for photographs.

Why convert HEIC to PNG?

HEIC is a lossy format. When you need to edit a photo extensively, preserve transparency, or feed it into software that expects lossless input, PNG is the right target. Unlike JPG, PNG keeps every pixel of the decoded image and supports an alpha channel for transparent backgrounds. This matters for screenshots, logos, icons, and any HEIC photo that contains parts you need to layer or edit without re-encoding loss.

HEIC vs PNG

Attribute HEIC PNG
Container HEIF (ISO/IEC 23008-12) PNG (ISO/IEC 15948)
Compression algorithm HEVC (H.265 intra-frame) DEFLATE (lossless)
Compression type Lossy Lossless
Typical file size Small (40-50% smaller than JPG) Large (3-5x HEIC equivalent)
Alpha channel Supported in HEIF container Supported (8-bit alpha)
Best for Modern mobile photography Editing, screenshots, web graphics
Compatibility iOS 11+, macOS High Sierra+ Universal — every browser since 1996

Technical details

Input formats HEIC, HEIF
Output format PNG (Portable Network Graphics)
Compression Lossless (zlib)
Transparency Preserved if present in original
Max file size 50 MB per file
Batch processing Supported
EXIF metadata Preserved by default
Typical output size 3-5x larger than source HEIC
File retention Auto-deleted after conversion

How the conversion works

The converter decodes the HEVC-compressed image stream inside the HEIC container and writes it as an uncompressed PNG using zlib compression. The output has no additional quality loss beyond what was already baked into the original HEIC. PNG's alpha channel is available for images that already had transparency information in the HEIF container.

When to convert HEIC to PNG

Quality considerations

PNG output is lossless. Every pixel of the decoded HEIC image is preserved exactly — no additional quality loss beyond what was already in the source. This makes PNG the correct choice for editing workflows where you plan to re-encode multiple times. Note that PNG output is 3-5x larger than the original HEIC, sometimes more for large photos.

Limitations and caveats

Compatibility

Tips for best results

Common problems and fixes

Converted PNG is much larger than the HEIC original
This is expected. PNG is lossless — every pixel is kept exactly, while HEIC compresses aggressively. If size matters more than lossless quality, use JPG instead.
Transparent areas in HEIC are not transparent in PNG
This usually means the source HEIC did not contain a real alpha channel — some HEIC photos use HEIF 'auxiliary' images for transparency that are not part of the primary image stream. Only real alpha channels survive conversion.
PNG opens slowly in an old image viewer
Some legacy viewers are slow on large PNGs because PNG is decompressed in memory. Modern viewers (Windows Photos, Preview, Chrome, Firefox) handle PNGs smoothly.

Frequently asked questions

Is PNG better than JPG for HEIC conversion? +
It depends on the goal. PNG is better for editing, screenshots, and images with transparency. JPG is better for sharing, email, and web uploads because the files are much smaller. Use PNG when you want lossless output; use JPG when you want small files.
Does HEIC to PNG conversion lose quality? +
No. PNG is a lossless format, so the decoded HEIC image is preserved pixel-for-pixel. The only quality loss is whatever was already present in the original HEIC (which is a lossy format). Converting HEIC to PNG adds no additional loss.
Why is my HEIC to PNG file bigger than the source? +
PNG uses lossless compression, so it cannot achieve the same file size as HEIC's lossy HEVC compression. PNG files are typically 3-5x larger than the source HEIC. That's the trade-off for perfect quality preservation.
Can I convert HEIC to PNG on Windows? +
Yes. This converter runs in your browser — Windows, macOS, Linux, Android, iOS. No software installation is required.
Does PNG support transparency from HEIC? +
PNG supports 8-bit alpha. If the source HEIC contains real transparency information (as opposed to HEIF's auxiliary transparency images), that transparency is preserved in the PNG output.
Is PNG smaller than HEIC? +
No — PNG is usually 3-5x larger than the equivalent HEIC file for photographs. PNG's advantage is lossless preservation, not compact size.
What's the maximum HEIC file size? +
50 MB per file.

Sources and references

Last reviewed: 2026-10-01