Convert M4A to AAC for Apple Devices and Streaming

Convert your MPEG-4 Audio files to Advanced Audio Coding online for free. M4A is slightly less universal than MP3 — some Android apps and older players may struggle with M4A — AAC solves that. No registration, no watermarks, instant download.

Drag & drop your file here, or

Max 100 MB • Max 10 min duration • Max 1080p

How to Convert M4A to AAC — 3 Steps

FFmpeg transcodes your M4A file to Advanced Audio Coding — apple devices and streaming.

  1. Upload your M4A file

    Select your M4A file from iTunes purchases. Files up to 100 MB are accepted.

  2. Confirm and convert

    Confirm you own the file and click Convert to AAC. Processing typically completes in seconds.

  3. Download your AAC file

    Download your AAC immediately — ready to iphone, ipad, mac, and apple watch play aac natively without conversion.

Why Convert M4A to AAC?

M4A (MPEG-4 Audio) is slightly less universal than MP3 — some Android apps and older players may struggle with M4A. Converting to AAC gives you apple native and better quality.

Apple nativeiPhone, iPad, Mac, and Apple Watch play AAC natively without conversion
Better qualityAAC at 128 kbps sounds measurably better than MP3 at the same bitrate
iTunesiTunes and the Apple Music app use AAC as their default format
YouTubeYouTube streams audio internally using AAC codec
AndroidAndroid natively supports AAC — the default codec in MP4 video
StreamingSpotify, Tidal, and Amazon Music all use AAC for audio delivery

Frequently Asked Questions

Why convert M4A to AAC?

M4A (MPEG-4 Audio) is slightly less universal than MP3 — some Android apps and older players may struggle with M4A. Converting to AAC gives you iphone, ipad, mac, and apple watch play aac natively without conversion.

Will converting M4A to AAC reduce audio quality?

Both M4A and AAC use lossy compression. Each conversion involves a small quality reduction. We use high-quality encode settings to minimise the impact. Keep your original M4A if you need to convert again.

What M4A files are supported as input?

You can upload M4A files from iTunes purchases, Apple Music, iPhone voice memos, and ripped CDs via iTunes. Files must be under 100 MB.

What are the best uses for AAC format?

AAC (Advanced Audio Coding) is ideal for: iphone, ipad, mac, and apple watch play aac natively without conversion; aac at 128 kbps sounds measurably better than mp3 at the same bitrate; itunes and the apple music app use aac as their default format.

Is my audio file kept private?

Yes. Files are processed privately and automatically deleted within 60 minutes. We never store, sell, or analyse your content.