HEIC 转 AVIF 转换器
A free HEIC to AVIF converter for High Efficiency Image Container files. Browser-based pairs here usually run in this tab, with no file upload.
将你的 HEIC 文件拖放到这里
or 浏览你的设备 · 粘贴快捷键 Ctrl+V
Accepts .heic, .heif, .hif files. You can queue several files; each is processed one after another on your own device.
你的文件永远不会离开这台设备 —— 没有上传，也就没有服务器可以从中删除它们。
- 01
添加你的 HEIC 文件
将文件拖放到上方的方框里，或点击浏览选择。它们会直接从磁盘读取 —— 不会发送到任何地方。
- 02
检查设置
AVIF is already selected. Open the gear icon on any row if you want to change quality, dimensions or codec before converting.
- 03
下载你的 AVIF
点击转换，等待该行处理完成。转换多个文件时，可以将它们全部打包为一个 ZIP 一次性下载。
HEIC
High Efficiency Image Container自 iOS 11 起 iPhone 默认拍摄使用的格式 —— 在相同质量下体积大约只有 JPEG 的一半，并支持深度图和实况照片。Windows 和大多数网站至今仍无法打开它，这也是为什么转换为 JPG 是需求量最大的图片转换。
- 开发者
- MPEG / Apple
- 发布时间
- 2015
- 扩展名
- .heic, .heif, .hif
- MIME 类型
- image/heic
- 压缩方式
- 有损
AVIF
AV1 Image File Format使用 AV1 编解码器编码的静态图像，也是当前效率最高的格式 —— 在同等质量下体积往往只有 JPEG 的一半，并支持 HDR 和广色域。代价是编码速度较慢。
- 开发者
- Alliance for Open Media
- 发布时间
- 2019
- 扩展名
- .avif
- MIME 类型
- image/avif
- 压缩方式
- 有损或无损
- 规范
- 开放
- HEIC is already lossy, and while AVIF can be saved either way, this conversion cannot restore discarded details. Saving it lossless here preserves what is already present instead of discarding more.
关于 HEIC 转 AVIF 的常见问题
这个 HEIC 转 AVIF 转换器是免费的吗？
是的。在这里把 HEIC 转换为 AVIF 完全免费，无需账号、没有水印、也没有每日次数限制。处理在你自己的设备上完成，因此不存在需要转嫁给你的服务器成本。
我的 HEIC 文件会被上传到任何地方吗？
For browser-based pairs, your file is read locally and converted by Squoosh in this tab. No file payload is uploaded; you may still see analytics and engine downloads in network logs.
HEIC 转 AVIF 有文件大小限制吗？
There is no imposed upload cap when it runs in-browser, but each conversion still depends on your device and browser memory. Large videos are the first practical limit, then memory-heavy documents or images.
把 HEIC 转换为 AVIF 会损失质量吗？
It depends on your selected settings and codec path. Many engines can write either lossy or lossless output for AVIF, so you can usually increase quality if this file is your final version.
可以一次把多个 HEIC 文件转换为 AVIF 吗？
Yes. Drop in several files and each gets its own row; they are processed one after another on your device. You can download them one by one or as one ZIP.
HEIC 转 AVIF 能在手机、Mac 或 Chromebook 上使用吗？
Most modern browsers on Windows, macOS, Linux, ChromeOS, Android and iOS work. Very large videos are often more reliable on desktop or a browser with more memory.
Why do some conversions take longer on first run?
The conversion engine has to download first. Small codec bundles are fast, while ffmpeg is commonly 12–30 MB; later conversions of similar type use the cached engine.
I converted a file and the output is blank or unusable. What should I check?
Start over with default settings, then change one option at a time (quality, bitrate, page size, or codec) to isolate what changed behavior. If it keeps failing, retry with a smaller file and confirm the source format matches the pair.
将其他格式转换为 AVIF
此处共有 16 种格式可以转换为 AVIF。
将 HEIC 转换为其他格式
一个 HEIC 文件可以转换为以下任意一种格式。