Lossless baseline for further work.
FLAC preserves every detail of the source AAC, which prevents additional quality loss during subsequent edits or re-encoding. The original AAC compression cannot be undone, but no new artifacts will be introduced.
为什么要转换
01
FLAC preserves every detail of the source AAC, which prevents additional quality loss during subsequent edits or re-encoding. The original AAC compression cannot be undone, but no new artifacts will be introduced.
02
FLAC is accepted by a wider range of audio players, car stereos, and streaming services than AAC. The conversion removes a recurring compatibility friction without changing what the file actually contains.
03
FLAC files are typically smaller than their AAC counterparts, which reduces hosting, transfer, and storage costs at scale. The savings compound when serving the same content to many recipients.
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 AAC 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,FLAC 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 |
|---|---|---|---|---|---|---|---|---|
| AAC | 原生 | 原生 | 原生 | 原生 | 原生 | 原生 | 原生 | 原生 |
| FLAC | 原生 | 原生 | 原生 | 原生 | 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. Uncompressed WAV stems handled comfortably on desktop. | Typical 100 MB to 1 GB per-file caps, plus rate limits. |
The successor to MP3 with superior quality per bit. Used widely in streaming and modern audio.
Typical uses
YouTube, Apple Music, streaming services.
A lossless audio format that reduces file size ~40–60% versus WAV with bit-perfect playback.
Typical uses
Audiophile libraries, music archives, hi-res audio.
是的。LocalConvert 完全免费,无需注册,没有每文件或每日的限制。
不会。AAC 到 FLAC 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,AAC 到 FLAC 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:
AAC to FLAC is processed in your browser with WebAssembly. No upload, no tracking, no limits. Your file never leaves your device.