Lossless baseline for further work.
BMP preserves every detail of the source HEIF, which prevents additional quality loss during subsequent edits or re-encoding. The original HEIF compression cannot be undone, but no new artifacts will be introduced.
为什么要转换
01
BMP preserves every detail of the source HEIF, which prevents additional quality loss during subsequent edits or re-encoding. The original HEIF compression cannot be undone, but no new artifacts will be introduced.
02
BMP 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
BMP is well documented and decodable by long-lived tooling, which matters for archives, deliverables, and any file that needs to outlive the software that created it.
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。
将 HEIF 文件拖到放置区域,或点击从设备中选择一个。
转换完全在你的浏览器中进行。完成后,BMP 文件会自动下载到你的设备。
质量与保真度
格式规范
兼容性
| 平台 | Windows | macOS | iOS | Android | Chrome | Firefox | Safari | Edge |
|---|---|---|---|---|---|---|---|---|
| HEIF | 插件 | 原生 | 原生 | 应用 | — | — | 原生 | 插件 |
| BMP | 原生 | 原生 | 原生 | 应用 | 原生 | 原生 | 原生 | 原生 |
为什么选 LocalConvert
| 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. |
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.
A simple, uncompressed raster format from Windows. Large file sizes but easy to read and write.
Typical uses
Legacy Windows software, ICO source assets, simple bitmap exchange.
是的。LocalConvert 完全免费,无需注册,没有每文件或每日的限制。
不会。HEIF 到 BMP 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。
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 —— 页面加载后,HEIF 到 BMP 的转换无需联网即可工作。重新打开页面一次即可缓存。
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。
Last verified:
HEIF to BMP is processed in your browser with WebAssembly. No upload, no tracking, no limits. Your file never leaves your device.