MetadataG – Free Online File Metadata Extractor
MetadataG

M4A Metadata Viewer and Extractor

Extract and read M4A metadata securely with a private, browser-based metadata viewer.

All M4A metadata extraction happens locally in your browser—no files are uploaded to any server, keeping your private data completely secure.

What is M4A Metadata?

M4A (MPEG-4 Audio) is Apple's container for AAC audio in MP4. M4A metadata is stored in MP4 atoms including iTunes-specific tags (iTunSMPB, iTunNORM). The format follows ISO/IEC 14496-14 and supports QuickTime metadata for cover art, lyrics, and chapter markers.

How to View and Extract M4A Metadata Online Free?

Follow these three simple steps to view, check, and download M4A metadata instantly in your browser.

1

Select Your File

Click or drag your M4A file — directly into your browser.

2

View the Metadata

Explore detailed metadata such as file properties, technical info, and metadata tags extracted from your M4A file.

3

Download Results

Save your metadata as PDF, JSON, HTML, or TXT for documentation or sharing.