Convert PNG to HEIC — Massive Size Reduction
PNG files are often very large because of their lossless compression. Converting to HEIC typically reduces file size by 80-95% for photographic content while maintaining excellent visual quality. Unlike JPG, HEIC preserves transparency from the original PNG, making it a compelling alternative for the Apple ecosystem.
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HEIC, WEBP, AVIF, TIFF, BMP, SVG, GIF, PNG, JPG, PDF, CR2, NEF, ARW, DNG — up to 50MB each, or 50 from a folder
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Modern format with excellent compression. Limited browser support.
Apple's format. Excellent quality at small sizes.
Lossless format. Large files, ideal for print/archival.
256 colors max. Best for simple graphics.
Uncompressed bitmap. Very large files.
Vector trace. Best for logos and simple graphics. Not a pixel-perfect conversion.
Same format? You might want to compress instead.
SSIM-optimized — finds the lowest file size at your chosen visual fidelity.
Need to crop first? Use the Crop tool. Want to adjust or filter? Try the Editor.
Resize tool → Live preview, percentage scaling, and dimension presets.
Tip: Use PNG or WebP for transparent output. Standalone tool →
Lossless format — files can be large
GIF is limited to 256 colors
Best for logos, icons, and line art. Photos produce stylized results.
BMP files are uncompressed and can be very large. Consider TIFF (LZW) or PNG for lossless with smaller file sizes.
Leave empty for all pages. Multi-page PDFs produce a ZIP.
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PNG vs HEIC Comparison
| Feature | PNG | HEIC |
|---|---|---|
| Full Name | Portable Network Graphics | High Efficiency Image Container |
| Lossy Compression | ❌ | ✅ |
| Lossless Compression | ✅ | ✅ |
| Transparency | ✅ | ✅ |
| Animation | ❌ | ❌ |
| Browser Support | All browsers, all devices | Safari, iOS; limited elsewhere |
| Color Depth | 16.7M+ (24/32/48-bit) | 16.7M (24-bit) |
| Typical Use | Screenshots, graphics, logos, images needing transparency | iPhone/iPad photos (default since iOS 11) |
| Year Introduced | 1996 | 2015 |
Why Convert PNG to HEIC?
PNG files can be massive — a single screenshot or photo might be 5-20 MB. HEIC’s advanced HEVC compression produces files 80-95% smaller with excellent quality. HEIC also supports transparency, preserving alpha channels from PNG. This is ideal for Apple device workflows where storage efficiency matters.
How to Convert PNG to HEIC
Upload your PNG file by dragging it into the converter or clicking to browse. Files up to 50 MB are supported.
KoalaPic converts to HEIC with adjustable quality, preserving any transparency from the original PNG.
Download the compact HEIC file. Both files are deleted after 1 hour.
Quality Note
Lossless-to-lossy conversion. At quality 80+, the visual difference is imperceptible and size savings are dramatic — often 80-95% smaller. HEIC preserves transparency from PNG, unlike JPG which would lose it.