Top 10 Best FLV to MP3 Converters on Windows/Mac/iPhone/Android/Online

Laura Goodwin Sep 18, 2021 Convert Video

Many people convert video to MP3 for offline playback or customization. There are many music videos in video-sharing sites. FLV is exactly the container file format used for delivering video, audio and text content over the Internet. Thus, you can convert FLV to MP3 to extract audio tracks directly.

FLV to MP3

FLV files are not playable on iPhone, iPad, Zune and many popular portable devices. Moreover, you cannot edit videos in .flv file extension with QuickTime, Windows Media Player and many other media players. Since MP3 is widely supported by almost all digital players and editors, you can convert FLV to MP3 format to fix incompatibility issues.

Part 1: Top 5 FLV to MP3 Converter Software

If you want to convert FLV music videos to MP3 with professional tools, you can use one of the video to MP3 converter to solve the problem. There are 5 popular FLV to MP3 converter software in 2019 you can try.

Top 1: Vidmore Video Converter

Vidmore Video Converter is capable to convert FLV video to MP3 with 50x faster video conversion speed. Thus, you can extract MP3 audio from large FLV files in a short time. The professional video processing algorithms can preserve the original quality. Moreover, you can split or merge any FLV file with the built-in video editor. In a word, you can get one-stop solution to extract audio from FLV video to MP3 on Windows and Mac.

Vidmore Video ConverterVidmore Video Converter

  • Convert FLV to MP3, M4A, FLV, AAC and other 200+ video and audio formats.
  • 50x faster video conversion speed with the advanced acceleration technology.
  • Preserve the original quality of your FLV video with lossless transcoding.
  • Trim an FLV video into small clips and save as MP3 format.
  • The FLV video to MP3 converter is available for Windows 10/8/7 and Mac.
  • Have no malware or bundled programs.
Vidmore Video Converter

Step 1: Free download, install and launch FLV to MP3 converter software. Drag and drop FLV video files to the main interface. You can also click “Add File” to import files in FLV format.

Add file or folder

Step 2: Unfold the “Profile” list. Select “MP3” from “General Audio” or other profiles. Click “Settings” to adjust MP3 audio settings if necessary.

Set MP3 audio format

Step 3: Click “Clip” on the top toolbar. You can drag the clipper to extract the certain soundtrack from your FLV file. Of course, you can also set the start and end time to extract MP3 audio accurately.

Start and end

Step 4: Click “Browse” to set a destination folder. At last, click “Convert” to start converting FLV file to MP3.

Start converting

Top 2: VLC Media Player

OS: Windows, Mac, Linux, iOS, Android

Download link:

VLC Media Player is a free and open source multimedia player and converter. You can convert FLV to MP3 using VLC on your phone or computer for free.


  1. The FLV to MP3 converter app works on multiplatform.
  2. Has a built-in audio clipper, audio equalizer and other editing tools.


  1. The latest VLC update is buggy.
  2. It is hard to find all advanced features due to the outdated interface.
VLC Media PLayer

Top 3: HandBrake

OS: Windows, Mac, Linux

Download link:

HandBrake is a free and open source video converter that can rip and convert video and audio files. Thus, you can change file formats from FLV to MP3 format for free with HandBrake.


  1. Support FLV to MP3 batch conversion.
  2. Get many presets to convert video to MP3 and different formats.


  1. The steep learning curve in HandBrake is not friendly to beginners.
  2. There are many not frequently-used options in HandBrake.

Top 4: Freemake Video Converter

OS: Windows

Download link:

Freemake Video Converter can be your FLV audio extractor to extract audio tracks to MP3 format on Windows. It is a freemium entry-level video converter and editor. You may need to upgrade to get more features.


  1. Convert FLV video to MP3 and 50+ formats, as well as popular mobile devices.
  2. The user interface is clean and well-designed.


  1. The speed of compression in the latest update is slow.
  2. The updated Freemake Video Converter is not a budget.
Freemake video converter

Top 5: FFmpeg

OS: Windows, Mac, Linux

Download link:

FFmpeg is a free and open source project that works on command lines. Different from common video converter software, you need to type the correct command line to require the specific order.


  1. FFmpeg can convert FLV to MP3 and most formats.
  2. Support a wide range of codecs.


  1. It is difficult for non-engineers to extract audio from video with FFmpeg.
  2. Some options are tough for even advanced used.

Part 2: Top 5 FLV to MP3 Online Converters

You can also convert FLV to MP3 for free online with the following tools. Here’re popular online file converters with many positive reviews. You can read and get your best FLV to MP3 converter online free.

Top 1: Vidmore Free Online Video Converter

Vidmore Free Online Video Converter is a 100% free FLV video to MP3 audio converter online. You do not need to pay to increase the file size limitation. You can batch convert FLV, MP4 and other files to MP3 online for free. Furthermore, you are free from popping-up ads, virus, user tracking and other potential risks.

Step 1: Open Click “Add files to convert” to get the launcher for FLV to MP3 online conversion.

Open Vidmore Launcher

Step 2: Click “Add File” to upload your FLV video. Unfold the “Audio” list. Set “MP3” as the output format from other audio formats.

Add flv video

Step 3: Click “Settings” on the right side of your file. You can adjust audio encoder, channel, sample rate and bitrate. Click “OK” to save changes.

Adjust audio settings

Step 4: Click “Convert” and set a temporary folder. When you click “Open”, the FLV to MP3 online free converter will extract the audio track immediately. Then click “OK” in the “Conversion-complete” dialog to finish the process.

Convert FLV to MP3

Top 2: FLVTO

FLVTO is an online MP3 converter. You can convert video to MP3 format. Thus, you can extract online video to MP3 with FLVTO for free directly.


  1. Convert a video to MP3 online for free.
  2. Get a Chrome plugin for MP3 audio extracting.


  1. Contain ads.

Where to convert FLV to MP3 online:


Top 3: Online Convert

Online Convert allows users to import FLV videos from desktop, URL, Dropbox or Google Drive. The maximum file size ups to 100MB. Thus, all your imported FLV files should be no more than 100MB.


  1. Add any FLV video from online or offline sources.
  2. Offer optional settings to change audio bitrate, channels and more.


  1. The file size limitation is 100MB.
  2. The video conversion speed is not fast.

Where to convert FLV to MP3 online:

Online Convert

Top 4: Zamzar

Zamzar contains information about two formats. Thus, you can know more about FLV and MP3 file extensions. Later, you can save the converted MP3 file to desktop or your email address.


  1. Zamzar has simplified the video to MP3 audio conversion process into 3 steps.
  2. Send a download link to your email after FLV to MP3 free conversion.


  1. Upload no more than 5 FLV files at the same time.
  2. The total FLV file size should be less than 150MB.

Where to convert FLV to MP3 online:


Top 5: FLV2MP3

FLV2MP3 is capable to convert videos to MP3. You can convert videos to MP3 or MP4 with simple clicks.


  1. It is easy to extract MP3 audio track from a video.


  1. The output quality is not satisfying.
  2. Need to install FLV2MP3 app to get faster video conversion speed.

Where to convert FLV to MP3 online:


Can you get the best video to MP3 converter now? If you want to convert music from FLV files in batch, you can free download Vidmore Video Converter to have a try. You can convert FLV to MP3 files with high quality thanks to the advanced quality maintaining technology. The 50x faster conversion speed also matters a lot. Of course, you can extract MP3 from video in small file size with online FLV converters.

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