// 免费在线工具
HEIC 转 PNG 转换器
将 iPhone HEIC 照片转换为无损 PNG 格式。非常适合在 Photoshop 中编辑或归档,零质量损失。支持 Apple 设备 Safari 浏览器。免费且私密。
何时选择 HEIC 转 PNG 而非 JPG
当你需要 iPhone 照片的无损副本进行专业编辑时,选择 PNG。与 JPEG 不同,PNG 精确存储每个像素,无压缩伪影——非常适合作为 Photoshop、Lightroom 或 Affinity Photo 的编辑母盘。PNG 还支持透明度,如果你计划后续去除背景,PNG 是正确的输出格式。
Safari 是 HEIC 转换的必需浏览器
HEIC 文件使用 Apple 专有的 HEVC 编解码器,内置于 macOS 和 iOS,但在 Windows 或 Android 的其他浏览器中不可用。该工具在 macOS 和 iOS 的 Safari(任何支持 HEIC 的现代 Safari 版本)中工作。在非 Apple 平台上,浏览器无法解码 HEIC 格式。
HEIC 转 PNG 的文件大小
预计文件大小会显著增加:3 MB 的 HEIC 照片通常会变成 15–30 MB 的 PNG。这是正常现象——PNG 的无损压缩远不如 HEIC 的 HEVC 编码高效。如果文件大小重要,改为 JPG(92 质量)会得到更小的输出,同时保持优异质量。
常见问题
PNG provides a lossless copy - no additional quality is lost during conversion. This matters if you plan to edit, re-save, or re-export the image multiple times. JPEG introduces additional compression artifacts each time it's re-encoded. For iPhone photos you want to use as editing masters, HEIC to PNG is the professional choice.
Not with this browser-based tool - HEIC requires the Apple HEVC codec which is only available in Safari on macOS/iOS or through a paid Microsoft Store extension on Windows. The simplest Windows-compatible workflow: use iCloud.com to download iPhone photos as JPEG, then convert JPEG to PNG using this tool.
Typically 5–10 times larger. HEIC achieves exceptional compression using HEVC technology. A 3 MB HEIC portrait photo might become a 20–30 MB PNG. If file size is a concern, use HEIC to JPG instead (quality 92 produces roughly 2–4 MB output from the same 3 MB HEIC).
No - HEIC already applied lossy compression when the iPhone captured the photo. Converting to PNG creates a lossless copy of the HEIC's current quality, but it cannot recover detail that the original HEIC compression discarded. The PNG will look identical to the HEIC at normal viewing conditions.