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Convert PNG to HEIC Online Free — Fast Batch Conversion
How to Convert Images Online
1Upload your PNG file
Click the upload button or drag and drop your PNG file. Upload up to 10 files for batch conversion.
2Convert
Click Convert. Convertify processes your file instantly using Rust and libvips.
3Download HEIC
Download your converted HEIC file. The original is deleted from the server immediately.
Supported Image Formats
HEIC
Apple photo format used by iPhone and iPad. High quality with small file size.
PNG
Lossless format that preserves every pixel. Best for screenshots and logos.
HEIF
High Efficiency Image Format — same as HEIC, used on Apple devices.
WebP
Modern image format by Google. Up to 30% smaller than JPG with the same quality.
JPG
Universal format for photos. Supported everywhere, great balance between quality and file size.
GIF
Classic format for simple animations. Supports transparency and up to 256 colors.
BMP
Uncompressed bitmap format. Maximum quality but very large file size.
TIFF
Professional lossless format used in printing and photography.
AVIF
Next-gen format with excellent compression. Up to 50% smaller than JPG.
PPM
Portable Pixmap format used in Unix/Linux environments.
HDR
High Dynamic Range format storing extended brightness data.
FITS
Flexible Image Transport System used in astronomy and science.
PDF
Portable Document Format. Convert PDF pages to JPG, PNG or WebP images.
AVIF vs WebP vs HEIC vs JPG
Quick comparison to help you choose the right format
AVIF
- Size: Up to 50% smaller than JPG
- Browsers: Chrome, Firefox, Safari
- Transparency: ✓
- Best for: Web performance
WebP
- Size: 25-35% smaller than JPG
- Browsers: All modern browsers
- Transparency: ✓
- Best for: Web compatibility
HEIC
- Size: ~50% smaller than JPG
- Browsers: Safari only
- Transparency: ✓
- Best for: iPhone storage
JPG
- Size: Baseline
- Browsers: All browsers & apps
- Transparency: ✗
- Best for: Universal sharing
Frequently Asked Questions
- Will converting PNG to HEIC lose quality?
- HEIC uses lossy compression by default, so there is a small quality reduction — but it is visually imperceptible at default settings. HEIC also supports a lossless mode for mathematically exact conversion.
- Does HEIC support transparency like PNG?
- Yes. HEIC supports alpha channel transparency through its HEVC encoding layer. Transparent backgrounds from PNG files are preserved during conversion.
- Can I open HEIC files on Windows?
- Windows 11 supports HEIC natively. Windows 10 requires the HEIF Image Extensions from the Microsoft Store (free). Some installations also need the HEVC Video Extensions.
- Is HEIC supported on Android?
- Android has no native HEIC support. If you need images that work on both Apple and Android, use JPG, PNG, or WebP instead.
- How much smaller is HEIC compared to PNG?
- For photographs, HEIC is typically 80–90% smaller than PNG. For screenshots and flat graphics, expect 50–70% reduction.
- Can I convert multiple PNG files to HEIC at once?
- Yes. Convertify supports batch conversion — upload up to 10 PNG files and download them all as HEIC simultaneously.
- Should I convert PNG to HEIC or to JPG?
- Convert to HEIC if the files will stay on Apple devices — HEIC offers better compression than JPG and supports transparency. Convert to JPG if you need universal compatibility across all platforms.
- Can browsers display HEIC images?
- Only Safari supports HEIC display natively. Chrome, Firefox, and Edge cannot render HEIC. For web use, convert to WebP, AVIF, or JPG instead.
- Will my PNG metadata be preserved?
- Color profile information is preserved during conversion. EXIF metadata from the PNG is carried over to the HEIC output.
- Is the conversion free?
- Yes. Convertify is completely free with no watermarks, no signup, and no file count limits per session.
Why convert PNG to HEIC?
PNG is the universal lossless format — every device, browser, and editor opens it without issue. But PNG files are large. A single iPhone screenshot saved as PNG can be 5–8 MB.
HEIC (High Efficiency Image Container) uses the HEVC codec to compress images at roughly half the file size of PNG while preserving visual quality that is indistinguishable to the human eye. If you are moving images to an iPhone, iPad, or Mac for storage in the Photos app or iCloud Photo Library, converting to HEIC means your images integrate natively with Apple's ecosystem and consume significantly less storage.
If you need smaller files but want to stay cross-platform, consider PNG to WebP or PNG to AVIF instead.
PNG transparency and HEIC — what carries over
PNG supports a full 8-bit alpha channel — 256 levels of transparency per pixel. HEIC also supports alpha transparency through its HEVC encoding layer.
When you convert a transparent PNG — a logo, icon, or product cutout — to HEIC, the transparency is preserved in the output file. This is not the case with PNG to JPG, where JPG has no transparency support and transparent areas are filled with white.
However, HEIC transparency is only useful within apps that support HEIC with alpha — primarily Apple's own apps. If you need cross-platform transparency with smaller files, PNG to WebP is a better choice.
PNG vs HEIC: format comparison
| Feature | PNG | HEIC |
|---|---|---|
| Compression type | Lossless (DEFLATE) | Lossy/Lossless (HEVC) |
| Typical file size (12 MP photo) | 15–25 MB | 2–5 MB |
| Transparency | 8-bit alpha (256 levels) | Yes (HEVC alpha layer) |
| Browser support | All browsers | Safari only |
| Apple device support | Supported but not native | Native (iOS 11+, macOS High Sierra+) |
| Windows support | Universal | Requires HEIF Extensions |
| Android support | Universal | Limited |
| Color depth | Up to 48-bit truecolor | 8–10 bit per channel |
| Best for | Universal compatibility, editing | Apple ecosystem storage |
HEIC compatibility in 2026
HEIC is native on Apple devices running iOS 11 or later and macOS High Sierra or later — that covers every iPhone since the iPhone 7 and every Mac since 2017. Within Apple's ecosystem, HEIC files open instantly in Photos, Preview, Quick Look, and all first-party apps.
Outside Apple, support is limited. Windows 11 can open HEIC files natively, but Windows 10 requires the HEIF Image Extensions from the Microsoft Store (free) plus the HEVC Video Extensions. Android has no native HEIC viewing support. Chrome, Firefox, and Edge cannot display HEIC images — only Safari can.
This means HEIC is excellent for personal storage on Apple devices but poor for sharing. If you need to send images to non-Apple users, convert to JPG or WebP instead.
When PNG to HEIC makes sense — and when it does not
Convert PNG to HEIC when your images will live on Apple devices and storage efficiency matters. Common scenarios include importing screenshots or downloaded images into your iPhone photo library, archiving large PNG collections on iCloud where storage is limited, and preparing assets for iOS app development where HEIC is the expected format.
Do not convert to HEIC if you need the images to work across platforms. For web publishing, HEIC is not an option since browsers other than Safari cannot display it — use PNG to WebP or PNG to AVIF for web delivery. If you need lossless quality with cross-platform transparency, keep your files as PNG.
File size savings: PNG vs HEIC
For photographs and complex images, HEIC is typically 80–90% smaller than PNG because HEVC lossy compression is extremely efficient on photographic data — a 20 MB PNG photo may become a 2–3 MB HEIC file.
For screenshots and UI elements with flat colors and sharp edges, the savings are smaller but still significant — typically 50–70% reduction.
For simple graphics with very few colors, PNG's DEFLATE compression is already efficient and the savings from HEIC are more modest. Note that HEIC default encoding is lossy — if you need mathematically lossless compression, HEIC supports a lossless mode, but the file size advantage over PNG shrinks considerably.
PNG to HEIC for iCloud and Apple Photos
Apple Photos and iCloud Photo Library use HEIC as the default storage format for iPhone cameras since iOS 11. When you import PNG files into Photos, they remain as PNG — Apple does not auto-convert them. This means your PNG screenshots and downloaded images take up more iCloud storage than necessary.
Converting to HEIC before importing ensures a consistent storage format across your entire photo library and reduces iCloud usage. If you share photos via AirDrop from your library, HEIC files are sent natively to other Apple devices. When sharing to non-Apple devices, Apple automatically converts to JPG during the share process.
How Convertify converts PNG to HEIC
Convertify uses a Rust backend with libvips for PNG decoding and libheif for HEIC encoding. The pipeline reads the PNG's full RGBA data including any alpha channel for transparency, applies color profile handling to ensure accurate color reproduction, and encodes to HEIC using the HEVC codec.
Transparency from the source PNG is preserved in the HEIC output. Files are processed server-side over an encrypted HTTPS connection and deleted immediately after download. No account is required.