什么是 HEIC？
HEIC（高效图像容器）是苹果开发的一种现代图像格式，使用 HEVC 压缩以大约 JPG 一半的文件大小存储照片，同时保持卓越的图像质量。
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What is it?
HEIC（高效图像容器）是苹果开发的一种现代图像格式，使用 HEVC 压缩以大约 JPG 一半的文件大小存储照片，同时保持卓越的图像质量。
理解 HEIC 有助于您为特定需求和工作流程选择合适的格式。
Technical Specifications
Pros & Cons
Advantages
HEIC files are typically 50% smaller than equivalent JPG files while maintaining the same perceived quality.
Supports 16-bit color depth compared to JPG's 8-bit, resulting in smoother gradients and better HDR.
A single HEIC file can store multiple images, making it perfect for Live Photos and burst shots.
Can store images with lossless compression when needed, unlike standard JPG.
Disadvantages
Not natively supported on Windows without additional codecs, and many older apps cannot read HEIC.
Primarily used by Apple devices, creating friction when sharing files with non-Apple users.
Most web browsers and online services do not accept HEIC uploads directly.
Sharing with non-Apple users almost always requires converting to JPG first.
When to Use It
以下是 HEIC 是正确选择的最常见场景：
iPhone Photography
Default format for all photos taken on iPhone and iPad since iOS 11.
iCloud Storage
Saves iCloud storage space by keeping original HEIC files on Apple devices.
Professional Apple Workflows
Photographers working exclusively in Apple ecosystems benefit from the reduced storage.
Live Photos
Efficiently stores the short video clip and still image of Apple's Live Photos feature.
在线转换 HEIC 文件 - 免费
立即压缩、转换或优化您的 HEIC 文件。无需安装软件，无需注册。
立即开始转换Frequently Asked Questions
Why does my iPhone save photos as HEIC?
Apple switched to HEIC by default in iOS 11 to reduce storage usage. HEIC files are about half the size of JPG with equivalent quality.
Can I open HEIC files on Windows?
Windows 10 and 11 support HEIC after installing the HEVC Video Extensions from the Microsoft Store. Without it, you need a converter.
How do I convert HEIC to JPG?
Use an online converter, Apple's built-in sharing (which auto-converts), or change your iPhone camera settings to capture in JPG instead.
Is HEIC better than JPG?
Yes for storage and quality - HEIC produces smaller files with better detail. But JPG wins on universal compatibility.
Will websites accept HEIC uploads?
Most websites do not accept HEIC. Convert to JPG before uploading to social media, email, or web services.