Aimersoft Video Converter Ultimate

Best FLAC Converter to Convert MP4 to FLAC

  • Quickly convert MP4 to FLAC audio files at 90X faster speed (batch process supported).
  • Support more than 500 formats, including MP4, MP3, FLAC, MOV, FLV, AVI, etc.
  • Download video from YouTube, Vevo or other 1000+ sites and convert it to FLAC.
  • Burn music files to CD, or burn videos to DVD.
  • Transfer FLAC or MP4 files to iPhone, iPad without iTunes, or transfer to Android phone.
  • Record video, compress video, convert images, etc.
Aimersoft Video Converter Ultimate

Top 4 MP4 to FLAC Converter to Convert MP4 to FLAC Easily

Jun 25,2019 • Filed to: Convert MP4 • Proven solutions

FLAC is a free and open source audio coding format that is used for lossless digital audio compression. So if you have an MP4 video that you only use for its audio part, converting MP4 to FLAC makes it more accessible to a number of audio devices, and save a lot of storage space at the same time. In order to convert MP4 to FLAC, a good conversion tool is required and for your reference, enlisted below are the best MP4 to FLAC converters.

Part 1. How to Convert MP4 to FLAC with Aimersoft Video Converter Ultimate

With a myriad of options available to convert files, you are bound to get confused while choosing one. If you are looking for a feature packed program that offers excellent quality, then Aimersoft Video Converter Ultimate is the software to rely on. Working on your latest versions of Windows and Mac system, the program allows file conversion between more than 500 formats including video and audio files. The files are converted in lossless quality at super fast speed. The built-in editor further helps in file customization when needed.

Aimersoft Video Converter Ultimate

Aimersoft Video Converter Ultimate

  • Allows to convert MP4 to FLAC in lossless quality and 90X faster speed.
  • Batch MP4 to FLAC processing supported for quick and hassle free process.
  • Supports more than 500 video and audio formats for conversion, like MP4, MOV, AVI, MP3, FLAV, WAV, AAC, etc.
  • Video editor with a complete set of features like trim, crop, cut, effect, watermark and others present.
  • Video download in high quality from over 1000 sites like Facebook, Vimeo, Vevo, YouTube, and others supported.
  • Video compression, GIF maker, video recording, and other additional features supported.
  • Windows and Mac version of the software are available.

Guide to convert MP4 to FLAC using Aimersoft Video Converter Ultimate

01 Import MP4 videos to MP4 to FLAC Converter

Download, install and run the Aimersoft Video Converter Ultimate software on your system. On the Convert tab, clicking on the +Add Files button allows browsing and adding MP4 videos on your system. Files from devices can also be added by opening the drop-down menu at +Add Files. Drag and drop also function here.

Import MP4 videos

02 Choose FLAC as the output format

Open the supported format list by opening options at Convert all files to: at the top right corner. From the pop-up window, select FLAC as the target format from the Audio list. Then choose the file quality.

choose flac

03 Convert MP4 to FLAC

At the Output tab, choose the location where you wish to save the converted file on your computer. Finally, hit on the Convert All button to start converting your added files. You can find the FLAC files in the output address, or from the Converted tab.

Import MP4 videos

Part 2. Free MP4 to FLAC Converter Online

Different types of online MP4 to FLAC conversion tools are available to get your task done in a simple manner without any software installation. For your reference, listed below are the free MP4 to FLAC converters.

1. Online UniConverter

This is a popularly used online program that facilitates conversion between an array of video and audio formats. Two concurrent conversions at a time can be done using the tool. The files can be browsed and added or can be simply dragged or dropped to the interface. The processed files need to be downloaded to your PC and there is an option to save it to your Dropbox account as well. You can also get the notification of the process completion on your mail after signing up with the program.


  • Supports a range of audio and video formats for conversion
  • A free tool with Windows and Mac compatibility


  • Only two concurrent conversions at a time can be done
  • No option for video editing
  • The converted file needs to be downloaded


2. AConvert

Using AConvert, MP4 and other video files present on your computer, Google Drive, online, and Dropbox can be converted to FLAC and other formats. The program features a simple interface where you just need to add the desired video and select the output format. There is an option for choosing and editing the sample rate and audio bitrate. After the process is complete the converted file can be downloaded from the program.


  • Allows to edit the sample rate and audio bitrate of the file
  • Facilitates adding files from multiple sources


  • No option for multiple file processing
  • Limited format support
  • The site comes with ads


3. Convertio

This is a popular online conversion program that facilitates adding files from computer and cloud storage for the conversion purpose. An array of image, audio, and video formats are supported as output files. 2 files at a time can be processed using the program. The converted files can be saved to your PC or desired Dropbox or Google Drive account.


  • The file can be added from the computer, Google Drive, and Dropbox
  • Converted files can be saved to Google Drive, Dropbox or computer


  • Supports only 2 concurrent conversion
  • Internet dependence
  • Slow conversion speed


Part 3. Comparison Table between these 2 Methods

The table below compares Aimersoft Video Converter Ultimate with the above 3 listed online tools on basis of various parameters. Look for your conversion needs and then choose the program that best suits your requirements.

Aimersoft Video Converter Ultimate
Onlline UniConverter
Format supports Over 500 audio and video formats Basic formats Basic formats Basic formats
Batch processing Yes No No No
Video editing Has a powerful built-in video editor No Only allows changing the sample rate and the audio bitrate No
Video transfer Yes No No No
Converted video quality Lossless Decent Basic Basic
Convert speed Super fast (90X faster) Fast Average Average
Internet dependence No Yes Yes Yes

Free download Aimersoft Video Converter Ultimate below.

Brian Fisher

staff Editor

0 Comment(s)
> Resources > Convert MP4 > Top 4 MP4 to FLAC Converter to Convert MP4 to FLAC Easily

All Topics