4 Easy Ways to Convert FLAC to M4A in Batches without Losing Quality

Emily Zeng
March 06, 2023 Preview 4.1K Preview 0
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FLAC audio files earn users’ strong support because they compress the audio with lossless quality. What disappointing is that FLAC is not compatible to Apple devices such as iTunes, iPhones, etc.. However, unlike converting FLAC to MP3, converting FLAC to M4A(alac) will get the same lossless file without quality loss. Therefore, you can enjoy the impeccable FLAC files on Apple devices. In this article, you will know how to batch convert FLAC to M4A without losing quality on Mac and Windows easily.


What is FLAC and M4A?

FLAC is the abbreviation of Free Lossless Audio Codec that is an open source audio coding format, which can compress the digital audios lossless. Actually, we could regard FLAC as the high-definition version of MP3 while the compressed FLAC file is smaller 50% to 70% in size than WAV.

M4A is a container format using MPEG-4 compression technology, which is developed by Apple. It can used for both AAC (lossy) and ALAC (lossless) codecs. So when you need to convert FLAC to M4A, you actually convert FLAC to AAC or ALAC. By converting FLAC to M4A(AAC) you will convert the lossless audio to a lossy audio will means quality loss, by converting FLAC M4A(ALAC) you get the same lossless audio file which almost at the same quality.

Why need to convert FLAC to M4A?

The short answer is iTunes. The longer answer is Apple ecosystem. FLAC is not supported by iTunes, Apple Music and devices. If you use iTunes to manage you music library. You have subscribed Apple Music or iCloud Music library, you have no choice but converting FLAC to Apple supported formats like M4A. In this way you can still listen the FLAC and don't have to change the way you used to.

Many people prefer converting FLAC to M4A online because they don’t bother to download a third-party tool. Actually, using online converters has more disadvantages than advantages when you use. For example:

  1. Online converters damage the original quality after conversion.
  2. Most online converters is not support to convert several files in batches.
  3. Most online converters can’t edit the file message before conversion.
  4. Online converters convert the files slowly when the file is large.

But a professional desktop converter doesn’t have all of the above problems because of the powerful and stable technology and database support. Therefore, we will introduce some excellent desktop converters in the following to help you do a satisfied conversion.

How to convert FLAC to M4A without losing quality on Mac/Windows?

Cisdem Video Converter (Mac and Windows)

If you want to find a preeminent FLAC to M4A converter, Cisdem Video Converter is such a professional software that can batch change FLAC to M4A on Mac and Windows quickly and safely. With the built-in media enhancer, it ensures to give you a fast and reliable conversion experience that won’t diminish the quality.

If you apply this best FLAC converter to make conversions among videos, you will be granted with more considerate features, such as cropping the unwanted part of the video, rotating the video to a suitable place, adjusting video effects, etc. In a word, welcome to use this reliable converter to make various conversions.


  1. Support a wealth of input and output digital formats
  2. Support bulk conversions
  3. Offer a fast speed to deal with audio files
  4. Provide diverse editing features to customize the added files at will
  5. Can also rip DVDs and download online videos
  6. Easy to use with the user-friendly interface


  1. Cannot edit the audio parameters of all files at once

How to batch convert FLAC to M4A in lossless quality on computer with Cisdem Video Converter

1. Download and install the software on the official website. Here, we take the Mac version as an example.
Free Download   Free Download

Launch it on your computer, stay at convert button section to convert.

add file

2. Upload the FLAC files by clicking “File > Add File (s)...” on the main menu, or simply drag and drop the FLAC files into the surface. As it offers a batch-processing feature, you can add more files to the interface according to your mind.

upload files

3. After uploading the FLAC files, hover your mouse to the bottom left corner of the interface, click the “Convert all tasks to” box and choose “General Audio > M4A Audio”.

choose format

4. If you are a software master, you can click set icon to make an advanced setting to the audio codec and setting Quality as High.

set the file

5. Besides, you can also click edit icon icon at the top right corner of the thumbnail to design a preferable audio file that fits your need.

customize the features

6. Finally, you can choose the save destination by clicking "File > Save convert folder to..." on the top main bar. Then, simply click convert icon button at the right corner to convert all the files.

make the conversion

After converting, you can click to find the just converted file on your device, or you can directly go to the destination you have set to find them.

How to convert FLAC to M4A free?


Fre:ac can convert FLAC to M4A and other popular audio formats and encoders on Mac for free. Comparing to other converters, Fre:ac is a portable application that you can install it on a USB drive and use it anytime and anywhere. If you save all the features before you close Fre:ac, its system will memorize your operation and it is convenient for you to use it with the original data when you open Fre:ac again.

Besides, someone may be confused that there is no option with the word “M4A” when they use Fre:ac to convert FLAC to M4A. Don’t worry, we have known that M4A is saved in the MPEG-4 format and encoded with either the Advanced Audio Coding (AAC) codec or the Apple Lossless Audio Codec (ALAC). Therefore, at this point, you can select the “core audio AAC/ALAC encoder” as the output format when you do the conversion.


  1. Free and open source
  2. Support batch converting the files in a fast speed
  3. Can rip CDs
  4. Support 43 languages that is friendly to people from different countries


  1. Only support a few formats than other converters
  2. The interface is not friendly to new users

How to convert FLAC to M4A free with Fre:ac

1. Download and install the application on your computer.

2. Open it and click add files icon to select a FLAC file for converting. Then it will form a thumbnail of the file.

add a file on fre:ac

3. Click the drop-down menu of “Selected encoder” box to select the “Core Audio AAC/ALAC Encoder” as the output format. Besides, you can also click the “Output folder” to set the output destination.

set format and location on fre:ac

4. Once done, click convert icon icon to begin the conversion. And you can see the process of the conversion

convert files on fre:ac

Freemake Video Converter

Freemake Video Converter is well-known as one of the best converters for Windows, which is a free and professional FLAC converter that can convert 500+ video and audio formats with some useful features, such as cut and merge the files. It works compatible with different devices such as Apple iPhone, iPad, Google Android, Huawei and more. Besides, it is a all-in-one converter that can also burn DVDs and make photos slideshows.

Freemake video converter


  1. Free
  2. Offer an according online version for converting FLAC to M4A free online one by one
  3. Can rips & burns DVDs


  1. Not speedy for conversion
  2. Only work on Windows

How to use Freemake Video Converter for converting FLAC to M4A free

  1. Download and install the application on your computer.
  2. Open it and click “+ Audio” to select a FLAC file that you want to convert. It will show your the thumbnail of the file on the interface right away.
  3. Choose the format of “M4A” on the bottom line.
  4. Click “convert” to start the conversion.

How to convert FLAC to M4A online?


Although online converters don’t work greatly than desktop converters, there still are some great online FLAC to M4A converters on the market for you to choose from. And Zamzar is exactly such a superior online converter that offers a comparatively faster speed than similar products. But, the speed can become slowly when the internet connection is unstable. Besides, It has a simple interface, making it pretty easy to use for users. However, it only allows you to convert FLAC to MA4 one by one. If you have several large files to convert, you’d better ask help for other tools.


  1. Support to convert 1200+ file formats
  2. Send email to users when the file is done
  3. Easy to use with only 3 steps


  1. Can’t batch convert several files at one time
  2. Only offer a free maximum of 50MB
  3. Offer no editing features
  4. Cannot allow users to select the output audio quality

How to convert FLAC to M4A online free with Zamzar

  1. Search the Zamzar official website on your browser and head to it page. Click “Add Files” and choose a FLAC file on your computer, or you can choose other way you want through Box, Dropbox, Google Drive and OneDrive.
    add files on zamzar
  2. Click the drop-down icon of “Convert To” in the middle to choose M4A as the output format.
    choose format on zamzar
  3. Directly click “Convert Now” to start the conversion. Also, you can see the process of conversion at the bottom. After done, you can click “Download” the save the M4A file on your computer.
    convert files on zamzar
  4. After done, it will bring you to a new page with converted M4A file. Click “Download” to save the M4A file on your computer.


Convertio online converter is a safe website to convert FLAC to M4A online that will delete the uploaded files automatically after 24 hours. Unlike most online converters, it provides customizable setting to users, which allows users to edit the related information of the file, including file quality, aspect ratio and other settings. In addition, Convertio is a rare online converter that supports batch converting files and is one of the fastest online converters .


  1. Works for all platforms
  2. Support batch converting the files
  3. Offer some easy editing features to modify the file
  4. Easy to use


  1. Work slowly with the large files
  2. Convert less file formats than converters
  3. Only allow free users to batch convert files up to 2 and can’t move to convert another 2 files automatically when the current conversion is done

How to convert FLAC to M4A online free with Convertio

1. Head to Convertio official website and click “Choose Files” to upload an FLAC file. If you want to convert several files at the same time, you can click “Add more files” to upload other files.

2. Click the drop-down icon of “Convert all to” select the output format with M4A.

select format on convertio

3. Once the output format is selected, the editing icon that looks like gears will appeal in the right side automatically. So, if you want to edit the file before conversion, click set icon to make related change.

edit file on convertio

4. Finally, please click the red “Convert” button at the right corner to start the conversion.

convert files on convertio

5. After done, click “Download” to save the M4A file on your computer.

How to convert FLAC to M4A via command line?


Using command line to is also a practical solution to make conversions you want. FFmpeg is such a free and open-source program that utilizes command lines to convert and stream various audios, videos and other multimedia files. It is easy to operate and works fast. But, if you don’t figure out the different command lines, it will be a little bit hard for you.


  1. Make conversions in bulk
  2. Can also edit the audio parameters by inputting related command lines


  1. Not easy for novices

Steps on how to convert FLAC to M4A with FFmpeg:

1. Free download and install the right version of FFmpeg.

2. Launch Terminal or Command prompt on your computer.

3. Input the command line: ffmpeg -i inputfile.flac outputfile.m4a. Then the Terminal will work as the below picture shows.

using command line

If it doesn’t work, you can add -acodec alac between two file formats to make a lossless conversion. Then the command lines becomes to: ffmpeg -i inputfile.flac -acodec alac outputfile.m4a.

4. Hit on “enter” on your keyboard to start the conversion right away. Once done, the new M4A file will appear in your appointed destination.


People usually tend to choose free converters. However, if you need to convert FLAC to M4A files frequently and have an urgent demand for high quality, paid video converters are highly recommended as they can provide you with a better experience. For example, professional converters have high requirement in quality, can convert almost all video and audio formats, can batch convert the files to save your time, provide many customized features and more merits. Of course, you can make a choice with your mind. I wish that it will help you to find a suitable one after reading this article.

Emily Zeng
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Emily is a girl who loves to review various multimedia software. She enjoys exploring cutting edge technology and writing how-to guides. Hopefully her articles will help you solve your audio, video, DVD and Blu-ray issues.

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