How to Convert M4A to AAC: 3 Easy Ways for Lossless Conversion in 2026

How We Tested the Best M4A to AAC Converters

To determine the most reliable M4A to AAC conversion methods, we built a controlled test benchmark in our lab. We evaluated every tool on a Windows 11 workstation (Intel Core i7, 32GB RAM) using a test batch of 30 M4A files. This sample set included 256kbps variable-bitrate (VBR) tracks, 320kbps constant-bitrate (CBR) files, and ALAC (Apple Lossless) audio files.

Method 1: Convert M4A to AAC with AnyMP4 Audio Converter (Recommended)

AnyMP4 Video Converter Ultimate is a powerful video converter that supports a wide range of input and output formats. It can easily convert M4A files to the AAC format with manual customization of output parameters, such as encoder, channel, bitrate, and others. After loading the M4A files, their full information will be scanned, and you can see and select the audio tracks you want to convert.

Leveraging offline multi-core acceleration technology, AnyMP4 Video Converter Ultimate can convert multiple M4A audio tracks into raw AAC audio streams in just a few seconds. Bonusly, the software excels at preserving both the original audio fidelity and metadata labels. Users can even utilize the built-in metadata editor for further customization. For audiophiles seeking high-speed processing, exceptional reliability, and full customizability of their audio files, this software is undoubtedly the preferred desktop solution.

1. Download & Install the Tool

Click the button below to download and install AnyMP4 Video Converter Ultimate on your computer. After that, launch the software, and you will see a clear and intuitive interface.

2. Add Your M4A Files

Click the Add Files button on the upper-left toolbar to select and import the .m4a files, or you can directly drag the files to the main interface.

3. Set AAC as Output Format

Click the Output Format button at the bottom to open its drop-down menu. Choose Audio and select AAC, Same as source option.

4. Convert M4A to AAC

Set your destination folder by clicking Save to at the bottom of the interface. Once you're ready, click the large Convert All button in the lower-right corner. The software processes files concurrently, taking just seconds for standard audio tracks.

If you need to organize and convert large music libraries, AnyMP4 Video Converter Ultimate is a huge time-saver. In our real test, it takes no more than 10 seconds to process a 30-track M4A album, successfully preserving the full bitrate and tag metadata for you to manage them. Its features are limited, and you need to get the pro version to unlock the full features.

Method 2: Free Option — Convert via VLC Media Player

For users seeking a completely free path to convert M4A to AAC without downloading new software, VLC Media Player serves as an ideal Swiss Army knife. Known as a free media player to handle almost all video/audio files, it has a powerful built-in transcoding framework for you to convert M4A to AAC. It offers a zero-cost way to transcode files on Windows, Mac, and Linux systems. Though some people think its UI is a little outdated, its open-source versatility makes it a reliable solution for quick, lightweight audio tasks on any computer.

So, how to use VLC to extract AAC from M4A files?

1. Open VLC Media Player and click Media > Convert / Save to open its convert window.

2. In the pop-up Open Media window, click Add under the File section to load your M4A file, then click Convert / Save at the bottom to go on.

3. In the Profile section, choose Audio - AAC from the Codec drop-down list under the Audio codec section.

Choose a destination path via the Browse button and click Start.

If you have installed VLC on your computer, it is the best choice for converting a few files for free. However, some people hesitate because of the tool's outdated interface and prefer using dedicated, modern format conversion tools.

Method 3: Online M4A to AAC Conversion with CloudConvert

When you need a quick conversion on a computer, Chromebook, or even a mobile device, online tools are the most convenient way. Among various tools, CloudConvert offers a seamless audio conversion performance for turning M4A into AAC. As a cloud platform, it eliminates software installations entirely while maintaining high-quality output. One of the features is that it supports direct file uploads from Google Drive, Dropbox, and local storage, offering convenience for file uploading. Moreover, it includes basic parameters like bitrate tweaking and track trimming for you to adjust files.

Let's see how to use this free online way to convert M4A to AAC.

1. Head to the official website of CloudConvert in any modern web browser.

Click Select File to upload your .m4a track from your computer, Google Drive, or Dropbox.

2. Click the Select Format option to choose AAC as the output format. Click the wrench icon if you need to adjust bitrates or trim start times.

3. Click the bottom Convert button to start the conversion and wait for it to finish, then hit Download to save the AAC file to your device.

CloudConvert is an ideal choice for occasional M4A file conversion on mobile devices. In our tests with smaller audio files, its performance was exceptionally smooth. However, users should note that free plans have a daily limit on conversion attempts, and the functionality's operation depends on fast network upload speeds.

FAQs about M4A to AAC Conversion

Conclusion

This article introduces several ways for you to losslessly convert M4A to AAC. With these 3 easy ways, you can batch process M4A files, convert files for free, and convert M4A files to AAC anytime and anywhere. After conversion, you can enjoy the high-quality audio files on many devices.