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M4A to MP3

Convert an M4A or AAC file to a widely compatible MP3, in your browser.

Select an audio file

Your M4A/AAC audio is decoded and re-encoded as a widely compatible MP3 — in your browser.

点击选择，或将文件拖到此处

如何 M4A to MP3

  1. 1

    Add the M4A

    Drop in an M4A or AAC file — it's decoded in your browser.

  2. 2

    Choose a bitrate

    Pick the MP3 bitrate you want.

  3. 3

    Download the MP3

    Save the widely compatible MP3.

Related PDF tools

Audio ConverternewConvert MP3, WAV, M4A, AAC, FLAC or OGG to MP3 or WAV — entirely in your browser.WAV to MP3newCompress a WAV to MP3 at the bitrate you choose, in your browser.Extract Audio from VideonewPull the soundtrack out of an MP4, MOV or WebM video as MP3 or WAV.Trim AudionewCut an audio file to just the part you want, with a visual waveform.

M4A to MP3 — 常见问题

Does this work with iPhone voice memos?+

Yes — voice memos are M4A/AAC, which this decodes in your browser and re-encodes as MP3.

Is my file uploaded?+

No. Decoding and encoding both happen entirely on your device.

Will it play everywhere after converting?+

MP3 is the most universally supported audio format, so yes — anywhere M4A might be refused, the MP3 will play.

Any quality loss?+

Converting between two lossy formats adds a little loss. Pick 256–320 kbps to keep it minimal.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。