How to Convert FLV to MP4 with VLC and Its Alternative?

Updated on Aug 23, 2022
  • Download Download the best free FLV to MP4 converter to convert videos easier and faster.
  • Step 1. Add .flv videos.
  • Step 2. Select MP4 as the output format.
  • Step 3. Change .flv to .mp4.
How to Change an FLV File to MP4?
Convert FLV to MP4 using VLC
Fixes to VLC Convert FLV to MP4 No Audio Issue
Convert FLV to MP4 with VLC Alternative

VLC is known for serving various multimedia purposes, including media player, video editor, network streamer, DVD player, and, of course, video converter. Due to its wide accessibility and cost-free nature, VLC is many people’s top choice when it comes to FLV to MP4 conversion. In the following, we will go over how to convert FLV to MP4 with VLC in detail. In case that your VLC conversion gets interrupted, we also offer a free plan B solution to convert FLV file to MP4. Just read and follow.

How to Convert FLV to MP4 using VLC?

Note: If you haven’t got VLC installed on your PC, get the latest correct version of VLC from the official website

Step 1. Open VLC. From the top menu bar, select “Media” > “Convert / Save …” (or press “Ctrl + R”) to bring up the “Open Media” window.

Step 2. In the new window, click “+ Add …” to load the needed FLV file(s). Then click the bottom “Convert / Save” button.

Step 3. In the next window, select “Video – H.264 + MP3 (MP4)” from the Profile drop-down options.

Step 4. Click “Browse” to rename the file and set an output destination. Make sure to change the file extension to “.mp4.”

Tips: If you have selected multiple FLV files, you can’t customize a specific output path. VLC will automatically generate the converted files to the same folder where the source files are located. You can tick off “Append ‘-converted’ to filename” to view the output files more clearly.

Step 5. Finally, click “Start” to begin the FLV to MP4 conversion.

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Fixes to VLC Convert FLV to MP4 No Audio Issue

I need help trying to convert an .flv file into an .MP4 file... But every time I try, I get the video portion but not the audio. But the original .flv file has audio in it and will play the sound when I pull up the file in VLC. Any help at all?” – From a Reddit user.

Many people have reported that their converted MP4 files having no sound. This is a quite common issue with VLC converted files and can be caused by broken VLC builds, wrong operation steps, and something within the source video file. Unfortunately, we haven’t found a universal solution to this problem. However, you can try your luck at the following fixes.

  • Fix 1. Update VLC to the latest version.
  • Fix 2. When selecting Profile, click the wrench icon to open the “Profile edition” window. Go to “Audio codec” and tick off “Keep original audio track” and click “Save.” Then, complete the rest steps to start conversion.
  • Fix 3. Also under the “Audio codec” tab, change the Codec to “MPEG 4 Audio (AAC)” and the Sample Rate to “48000 Hz.” Then click “Save.” Finish the rest steps to see if it works.

If the above solutions didn’t work for your case, you can try a different video converter instead. We provide a free VLC converter alternative along with a simple tutorial on how to use it to convert flash video to MP4 in the next part.

Plan B: Convert FLV to MP4 with VLC Alternative

Free HD Video Converter Factory is a flexible video/audio converter that can take care of various conversion jobs effortlessly. In simple clicks, it can convert FLV to MP4 without issues. It can do some basic video editing, compress video files, and even download online videos efficiently. Now, the tutorial below shows you how to convert FLV to MP4 with this free FLV to MP4 converter in detail.

Before start, please free download free download the software and install it on your PC.

Step 1. Import FLV File(s)

Launch Free HD Video Converter Factory and open the “Converter.” Click “+ Add Files” to import the FLV video(s) into the converter. You can also drag and drop the files into the program directly.

Step 2. Choose Output Format

Click the right-side format image to open the format library. Select “MP4” as the output format.

Step 3. FLV Convert to MP4

Click the bottom triangle button to choose an output folder. When everything is ready, click “Run” to change FLV to MP4.


Besides using VLC and its alternative to convert FLV to MP4, you can also try online video converters. However, we do not suggest you use them for potential privacy risks. Anyway, that’s all for how to convert FLV to MP4 with VLC and the related information. If you have any questions during the conversion, please feel free to contact me on Twitter. I’ll be glad to help. Thanks for reading!

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