How to convert FLV to MP4 Efficiently?

Author: Carina
Publish date
Updated on Sep 08, 2023
FLV to MP4
  • Download Download the best video conversion software to batch convert FLV to MP4 files without quality loss
  • Step1: Add all FLV files into the converter;
  • Step2: Choose “MP4” as the output format;
  • Optional: Edit, compress, and modify output video & audio settings
  • Step3: Start FLV to MP4 conversion at once.
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How to Convert FLV to MP4 on Windows?
Step 1: Import FLV Videos;
Step 2: Choose Output Profile;
Step 3: Convert FLV Files to MP4.
Free Option to Convert FLV to MP4

Author’s words:

FLV video has long been used to transmit digital video content over the Internet. It has been used for many years on many video distribution sites due to its small file size and fast loading speed. However, with Flash Player support ending at the end of 2020, FLV is gradually being replaced by the HTML5 format. Therefore, converting FLV to MP4 is a good option if you want to smoothly play or upload flash videos. Here I will show you how to convert FLV files to MP4 with an excellent FLV MP4 converter. Just download it here and follow the steps below:

How to Convert FLV to MP4 on Windows?

“How do I convert an FLV file to MP4?”
Guess you don't want to be bothered by the complicated conversion steps, so give this product—WonderFox HD Video Converter Factory Pro a try. It is an all-in-one FLV to MP4 converter for Windows, which only takes three steps to convert flash video to MP4. If you have multiple files to be converted, this FLV video converter allows you to convert multiple FLV videos to MP4 in batch mode to save your time and energy. More than that, you can also take it as a Windows video editor to edit FLV and MP4 videos with ease. Now, free download this software and follow the guide below to change .flv to .mp4.

FLV to MP4 Converter
Efficient FLV to MP4 Converter

HD Video Converter Factory Pro can effortlessly accomplish multiple FLV to MP4 conversions in a breeze with the support for hardware acceleration and batch conversion. You can also use it to compress the file size with high-quality preserved. Download this beginner-friendly converter now!

Free download Download for Free
Free download Download for Free

Step 1: Import FLV Video

Launch WonderFox HD Video Converter Factory Pro and open the “Converter”. Click “+Add Files” or “+” button to import your FLV videos or drag the target files from your PC and drop them into the interface.

Load FLV
Load FLV

Step 2: Choose Output Profile

Hit the big format icon on the right side of the interface to open the output format list. Go to the “Video” format and choose “MP4” to convert FLV file to MP4. In addition, you can also choose other formats or devices from the list if needed.

Tips: The provided Parameter settings can allow you to change video resolution, bitrate, audio volume, and other settings for better viewing experience.

Select Output Format
Select Output Format

Step 3: Convert FLV File to MP4

Before starting conversion, you can use the video editing tools provided in the toolbar below each video task to edit videos with ease. Then press the triangle button at the bottom of the interface to choose your output folder. When all settings are OK, click the big “Run” button and then start conversion with high speed and high quality at once.

Start Conversion
Start Conversion

Free Option to Convert FLV to MP4

If you want a free program with a simple process to convert FLV files to MP4, you can also give the free version of HD Pro - [Free HD Video Converter Factory] a shot. It can also convert FLV videos to 500+ profiles, including MP4, within 3 steps. Other basic video editing, downloading, compressing features also provided as well. 100% free, no file size/lengt limit, and watermark-free! But without the batch conversion mode and hardware acceleration, the conversion speed may be slower than that of the Pro version.

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HD Video Converter Factory Pro
More Functions of the Best FLV to MP4 Converter

WonderFox HD Video Converter Factory Pro

  • Batch convert FLV to WMV, WPG, AVI, MP3, etc. without losing quality;
  • Download online videos/songs/albums etc. from 1000+sites;
  • Record operations on the computer desktop, videos with sound, game process, etc.;
  • Compress large-sized videos nearly without sacrificing quality;
  • Editing videos or audios like trim, rotate, crop, etc.;
  • Make animated GIF with videos or pictures; extract subtitle from video
  • Make video slideshow, split-screen video, ringtones...
Free download Download for Free
Free download Download for Free


Besides the provided video converter program, you can also try online video converters. However, most online converters restrict file sizes and conversions. Some also contain annoying ads. Anyway, the desktop video converting program may always be the best choice for video conversion. That’s all I want to share with you about FLV to MP4 conversion. Hope it can be helpful to you. Thanks for your reading.

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