MP3 → M4A

Files stay on your device when the selected browser engine supports local processing.

Select files: MP3 Audio

Drop files here or click to browse.

Processing takes place in your browser; the selected files are not uploaded.

Limited conversion Features that the target format cannot represent may be flattened, simplified or omitted.

About MP3 to M4A conversion

What this conversion does

MP3: Lossy audio for portable playback and smaller files. M4A: An audio container that can hold AAC or ALAC; the extension alone does not identify the codec.

When to use M4A

  • When an app, device or website requires M4A instead of MP3.
  • When M4A is a better fit for your editing, sharing or storage workflow.

What to know

  • Processing takes place in your browser; the selected files are not uploaded.
  • Features that the target format cannot represent may be flattened, simplified or omitted.
  • Lossy conversion can reduce quality further. Metadata may be omitted.
  • Encoding depends on browser support. Metadata may be omitted.
  • Compare the exported sound with the original. A larger bitrate cannot restore detail already lost, and codec availability depends on the browser.