PNG to HEIF — Format Comparison & Online Converter
Fast, instant PNG to HEIF conversion. No signup required. Just drop your .png file and get .heif in seconds.
Batch Settings
Transparency will be lost
PNG supports transparency, but HEIF does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead.
Quality reduction ahead
PNG is lossless, meaning every bit of data is preserved. HEIF uses lossy compression — some data is permanently discarded to reduce file size. At high quality settings the difference is usually imperceptible, but the original data cannot be recovered.
Some metadata may not survive
Your PNG file may contain tEXt, iTXt, ICC metadata. HEIF has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
Color depth reduction: 48-bit → 10-bit
PNG stores up to 48 bits per channel, but HEIF supports only 10 bits. You may notice banding in smooth gradients (like sky or skin tones) where subtle color transitions are lost.
What compression artifacts to expect
HEIF lossy compression can produce blurring and occasional color shifts. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
还在为PNG图片文件太大，分享不便，或者占用手机存储空间太多而烦恼吗？特别是对于经常使用微信分享图片的朋友，或是喜欢用手机玩游戏、存储大量截图的用户来说，图片格式的选择尤为重要。HEIF（高效图像文件格式）正是解决这些痛点的理想方案。它能在保持出色画质的同时，大幅缩小文件体积，让您的图片分享更流畅，手机存储更从容。将PNG转换为HEIF，不仅能节省宝贵的存储空间，还能加速图片加载，提升您在各类应用中的使用体验。告别卡顿和漫长的等待，拥抱更高效的图像处理新时代，让每一次分享和查看都变得轻松愉快。
- 微信朋友圈分享
- 手机游戏截图存档
- 个人摄影作品集备份
HEIF格式在苹果设备上已广泛支持，但在安卓生态中，部分国内应用或老旧机型可能仍需额外兼容或转换才能顺畅查看。
About PNG to HEIF Conversion
PNG (introduced 1996) and HEIF (introduced 2015) are both image formats, but they differ in important ways. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. HEIF stores images using highly efficient HEVC compression, commonly used on Apple devices.
Full Name: PNG uses Portable Network Graphics, while HEIF uses High Efficiency Image Format. Compression: PNG uses Lossless, while HEIF uses Lossy. Transparency: PNG uses Yes, while HEIF uses No.
When you convert PNG to HEIF, the goal is to reduce file size without visible quality loss. PNG supports transparency, but HEIF does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead. Understanding these technical differences helps you choose the right format for your workflow.
Your PNG file is decoded and re-encoded as HEIF. The conversion involves 4 steps: (1) your png file is uploaded and the format is validated, (2) the file content is decoded into its raw representation, (3) the data is re-encoded in heif format with optimal settings, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you Your PNG file is too large for email attachments or upload limits, or when you You want to reduce storage usage without noticeably affecting quality. For the opposite direction, CocoConvert also supports HEIF to PNG conversion.
How to Convert PNG to HEIF
- 1
Upload .png file
Select your PNG file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .heif
Set HEIF as the output format. The converter uses optimal settings based on the PNG→HEIF conversion profile.
- 3
Convert
The server-side engine decodes your PNG file and re-encodes it as HEIF. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .heif file. Multiple output files can be downloaded together.
What Happens When You Convert PNG to HEIF
Your PNG image is decoded into raw pixel data, then re-encoded as HEIF. Some quality is permanently lost during compression. CocoConvert uses high-quality defaults to minimize this.
Your PNG file is decoded — the compressed/stored pixel data is expanded into raw RGBA (with alpha channel) pixels
Transparency is resolved: transparent pixels are composited onto a white background
Pixels are re-encoded using High Efficiency Image Format's lossy compression algorithm
Metadata (EXIF, ICC profiles) is transferred where HEIF supports it
The HEIF file is saved and ready for download
PNG vs HEIF — Detailed Comparison
| Feature | .PNG | .HEIF |
|---|---|---|
| Full Name | Portable Network Graphics | High Efficiency Image Format |
| Compression | Lossless | Lossy |
| Transparency | Yes | No |
| Animation | No | Yes |
| Color Depth | 8 or 16 bits/channel (up to 48-bit color) | 10 bits/channel |
| HDR Support | No | Yes |
| Typical File Size | 5–20 MB per photo, <1 MB for graphics | 1–3 MB per photo |
| Platform Support | Universal | Limited |
| Browser Support | Universal | Limited |
| Year Created | 1996 | 2015 |
| Open Standard | Yes | No |
Should You Convert PNG to HEIF?
When to Convert
- ✓Your PNG file is too large for email attachments or upload limits
- ✓You want to reduce storage usage without noticeably affecting quality
When NOT to Convert
- ✗You need to preserve transparent areas — HEIF doesn't support transparency
Consider alternatives:
Common Mistakes When Converting PNG to HEIF
"My file's transparent background will carry over to HEIF"
HEIF doesn't support transparency. Transparent areas become solid (usually white). Save as PNG or WebP if you need transparency.
Frequently Asked Questions
What is the difference between PNG and HEIF?
PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. HEIF stores images using highly efficient HEVC compression, commonly used on Apple devices. Full Name: PNG uses Portable Network Graphics, while HEIF uses High Efficiency Image Format. Compression: PNG uses Lossless, while HEIF uses Lossy. Transparency: PNG uses Yes, while HEIF uses No.
Does PNG to HEIF conversion affect quality?
PNG supports transparency, but HEIF does not. Transparent areas will be filled with a solid color (typically white). If you need transparency, consider converting to PNG or WebP instead.
Which format has better compression, PNG or HEIF?
PNG uses lossless compression. HEIF uses lossy compression. The better choice depends on whether you prioritize file size or quality.
How long does PNG to HEIF conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is PNG or HEIF better for long-term storage?
PNG is better for archival since it's lossless.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.