Although it can open both FLV and MP4 files natively, if you prefer to use an MP4 version, you can use VLC itself to convert the file: The VLC media player is a very popular free media software program used by millions of PC owners. Test the file to see if the conversion was successful.

The file should now have been converted to MP4.

Open the file location that you set on the remux settings.

When the conversion is done, a small window will pop up.

Click on Remux on the lower right side of the window.

Make sure that the filename of the Target Version is in the MP4 format.

Find the target location where you want the recording to go.On the left of the text box under target file, click on the three dots icon.On the window that appears, look for the FLV file that you want to convert.On the window that appears, click on the three dots icon to the right of the text box under OBS Recording.From the dropdown list, click on Remux Recording.On your OBS application, click on File in the upper left corner of the top menu.But you can convert the file when you’re done recording. This is because FLV recordings won’t delete the entire file when it crashes, unlike when the recording is done on MP4. When using OBS, the acronym for Open Broadcaster Software, a popular streaming program, recording files on the FLV format is recommended. Fortunately, there are ways to convert FLV to MP4, and we’ll detail the popular methods in the article below. For those with lots of videos recorded as FLV, this may present a problem.

Convert .flv to mp4