Convert FLV to AAC in bulk.
Large FLV files are supported.

Max size: 200 MB per file

You can convert FLV Learn more about FLV files to


How to convert FLV to AAC?

You can convert FLV to AAC with MConverter in three easy steps:
  1. Choose FLV files from your device
    At the top of this page, drag and drop your FLVs.
    You can also click to select FLV files using your operating system's file chooser.
    Another method is to press Ctrl+V to paste an FLV file you have copied to clipboard.
  2. Click or tap on AAC from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's AAC or something else.
  3. Download your AAC files, after MConverter has finished processing them
    There's an option to automatically download the converted AAC files, so you don't have to press the download icon for each AAC.

About the formats

Extension flv
Category Video file formats
Developed by Macromedia, now Adobe
Mime type video/x-flv


FLV is a Flash video file. It was created for online streaming of video content using the Adobe Flash Player. However, since Flash reached end-of-life in 2020, the video format is now only used by Adobe Animate and playable by some third party apps like VLC.
Extension aac
Category Audio/Music file formats
Developed by Fraunhofer Institute, Nokia, Dolby, AT&T, Sony and others
Mime type audio/aac


AAC files are audio files using Advanced Audio Coding compression. AAC is a lossy format, meaning the audio quality remains almost the same as the original source. The slight loss leads to the audio files taking up less space, which makes them ideal for music streaming or when bandwidth is limited. AAC is superior to MP3 for handling frequencies above 16 kHz. The encoding efficiency for transient and stationary signals is also better when compared to MP3.

Common questions about converting FLV to AAC

Can I convert FLV to AAC in bulk?

Yes, MConverter supports batch converting of multiple FLVs to AACs simultaneously. You can even drag and drop folders containing FLVs to convert to AAC.
Pasting FLV files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert an FLV file to AAC, if its size is 1 GB?

Yes, with MConverter Premium you can convert big FLVs, up to 1 gigabyte each.
The free version lets you convert files up to 200 MB. If you need to convert FLV files over 200 megabytes, try MConverter Premium.

Is converting FLVs to AAC safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your FLV files are only accessible by you. 24 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your FLVs and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 2,171,694 files so far.

How long does it take to convert FLV to AAC?

For most videos, the wait could be a few minutes or less. However, MConverter also supports converting larger videos, meaning that it could take a while (up to over an hour, for example).
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