AAC to M4A Converter Tool [2025]

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Wrap your raw AAC audio streams into the standard M4A container for maximum compatibility.

✓ Lossless Wrapping✓ Perfect for Apple Devices✓ User-Friendly Interface

Or import from other sources:

Key Features

  • Convert raw AAC audio streams to the M4A container format.
  • Lossless Audio Wrapping: By default, the audio track is copied directly into the M4A container without any re-encoding, preserving 100% of the original quality.
  • Advanced controls:
    • Precise audio trimming with timestamp control
    • Volume adjustment with percentage control
    • Fade in/out effects
    • Audio reverse option
  • Fast and secure conversion directly in your browser.
  • No file size limits or watermarks.
  • No software installation required.

Why Use AAC to M4A Converter Tool?

The AAC to M4A Converter Tool is a simple utility for packaging a raw AAC audio stream into a standard M4A container. While a `.aac` file contains only the audio data, an `.m4a` file is a proper container that includes metadata and is recognized by all modern players, especially Apple devices. This conversion ensures your AAC audio is playable everywhere.

  • Ensure Playback Compatibility: Convert a raw `.aac` stream into a playable `.m4a` file.
  • No Quality Loss: The process simply wraps the existing audio in a new container without re-compressing it (unless filters are applied).
  • Apple Ecosystem Standard: M4A is the standard audio container for iTunes, iPhones, and all Apple products.

Frequently Asked Questions

What is the difference between AAC and M4A?

AAC (Advanced Audio Coding) is the actual audio encoding format (the codec). M4A is a container file format (MPEG-4 Part 14) that holds the AAC-encoded audio, along with metadata like song titles and album art. A raw `.aac` file might not play on all devices, but an `.m4a` file is universally recognized.

Will I lose quality converting from AAC to M4A?

No. By default, this tool performs a "remuxing" or "wrapping" operation. It takes the AAC audio data and places it inside an M4A container without changing the audio itself. The quality remains identical. Quality loss only occurs if you apply an audio filter (like changing the volume), which requires re-encoding.

Is my uploaded file secure?

Yes, your file is processed locally in your browser and is not uploaded to any server. This ensures that your data remains private and secure.

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