01
Modern compression standards
AVIF typically achieves better compression efficiency than HEIF at equivalent perceived quality. The result is a smaller file that still looks or sounds the same to most listeners and viewers.
100% local
IMAGE
Convert HEIF
to AVIF
Modern compression standards.
AVIF typically achieves better compression efficiency than HEIF at equivalent perceived quality. The result is a smaller file that still looks or sounds the same to most listeners and viewers.
— Drop area
为什么要转换
Why convert HEIF to AVIF
02
Broader cross-platform support
AVIF is accepted by a wider range of image viewers, editors, and content systems than HEIF. The conversion removes a recurring compatibility friction without changing what the file actually contains.
03
Lower storage and bandwidth cost
AVIF files are typically smaller than their HEIF counterparts, which reduces hosting, transfer, and storage costs at scale. The savings compound when serving the same content to many recipients.
— 如何转换
三步将 HEIF 转为 AVIF.
- 01
打开 LocalConvert
在任意现代浏览器中访问本页面 —— 无需安装、无需注册、无需插件。
- 02
拖入或选择你的 HEIF 文件
将 HEIF 文件拖到放置区域,或点击从设备中选择一个。
- 03
点击转换
转换完全在你的浏览器中进行。完成后,AVIF 文件会自动下载到你的设备。
质量与保真度
质量与保真度
- Lossy to lossy: a second generation of compression artifacts is possible.
- Transparency is preserved.
- Metadata (EXIF/tags) is preserved where the source provides it.
透明度 HEIF
✓ AVIF
✓
颜色深度 10-bit RGB(A) 10/12-bit RGBA, HDR
保留元数据 ✓
格式规范
格式规范
兼容性
这些格式可用的地方
| 平台 | Windows | macOS | iOS | Android | Chrome | Firefox | Safari | Edge |
|---|---|---|---|---|---|---|---|---|
| HEIF | 插件 | 原生 | 原生 | 应用 | — | — | 原生 | 插件 |
| AVIF | 应用 | 原生 | 原生 | 原生 | 原生 | 原生 | 原生 | 原生 |
HEIF
- Windows
- 插件
- macOS
- 原生
- iOS
- 原生
- Android
- 应用
- Chrome
- —
- Firefox
- —
- Safari
- 原生
- Edge
- 插件
AVIF
- Windows
- 应用
- macOS
- 原生
- iOS
- 原生
- Android
- 原生
- Chrome
- 原生
- Firefox
- 原生
- Safari
- 原生
- Edge
- 原生
为什么选 LocalConvert
LocalConvert 的对比
| Category | LocalConvert | 云端转换器 |
|---|---|---|
| 隐私 | Files never leave your device. The whole pipeline runs in your browser via WebAssembly. | Files travel to a remote server, sit in queue storage, and may be retained for analytics or moderation. |
| 费用 | Free, no signup, no daily quotas. | Often free for small files; paid tiers for batch / large / commercial use. |
| 限制 | Limited only by your device's memory and CPU. Multi-GB files OK on desktop. | Typical 100 MB to 1 GB per-file caps, plus rate limits. |
— The formats
From · HEIF
High Efficiency Image Format
A container for HEVC-encoded images, similar to HEIC. Strong compression but limited support outside Apple ecosystems.
Typical uses
Apple devices, modern phones, image sequences.
To · AVIF
AV1 Image File Format
A next-generation image format with exceptional compression, alpha, and HDR support. Roughly half the size of comparable JPEG.
Typical uses
Optimized web delivery, modern browsers, photography portfolios.
— FAQ
常见问题.
HEIF 转 AVIF 是免费的吗?
是的。LocalConvert 完全免费,无需注册,没有每文件或每日的限制。
我的文件会被上传到任何地方吗?
不会。HEIF 到 AVIF 的转换完全在你的浏览器内通过 WebAssembly 完成 —— 文件永远不会离开你的设备。
最大文件大小是多少?
没有固定上限 —— 实际限制取决于设备的可用内存。在低内存设备上,非常大的文件可能耗时较长或失败。
可以离线使用吗?
可以 —— 页面加载后,HEIF 到 AVIF 的转换无需联网即可工作。重新打开页面一次即可缓存。
转换会保留质量吗?
LocalConvert 使用业界标准工具(FFmpeg、ImageMagick、Pandoc)—— 质量与专业人员在命令行中使用的相当。有损格式在每次重新编码时仍会损失一些质量。
— Related
或转换这些.
浏览所有转换参考资料
格式参考资料
Last verified:
100% 本地转换.
HEIF to AVIF is processed in your browser with WebAssembly. No upload, no tracking, no limits. Your file never leaves your device.