How to Convert A FLV to A MP4 File?

convert flv to mp4 online

Add FLV file(s) that you want to convert.


Select MP4 as the output format you want to convert FLV file(s) to.


Click CONVERT to convert your FLV file(s).


Click DOWNLOAD to save your converted MP4 file(s).

Differences Between Online and Desktop Converters

online flv converter
Online Converter
  • Long-time wait
  • Up to 100MB file size
  • Popular formats supported
  • A maximum of 2 files in one conversion
  • Slow conversion speed
fast desktop flv converter
Faster Desktop Converter
  • 0 second wait
  • No size limits
  • 1000+ formats supported
  • Limitless batch conversion mode integrated
  • 30X faster than any converter

How to Convert FLV to MP4 and Vice Versa Easily

Standing for Flash Video, FLV is a popular format for streaming content over the net. The format is used for embedding videos on video sharing and social networking sites. Playing downloaded FLV videos on PC and mobile devices can run into problem due to compatibility or issues relates to need for additional codecs. To make your FLV files compatible, one of the best solutions is to convert video to a universal format like MP4. There are a number of FLV to MP4 online and desktop programs available and if you are searching for a professional tool with excellent quality output, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the apt choice. The software working as expert FLV to MP4 video converter looks after all conversion related needs. Supporting more than 1000 formats, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) can convert MP4 to FLV and other formats in batch easily. To proceed on how to convert FLV to MP4, follow the following mentioned steps.

Step 1: Open Wondershare FLV to MP4 converter.

Download and install Wondershare UniConverter following the simple instructions. Open it on your PC/Mac once installed.

video converter icon
One-Stop Easy Solution to Convert, Edit, Burn Media Files and More.

Step 2: Add FLV videos to the video converter.

Go to the Converting tab by default, and click +Add Files to browse and import FLV videos from PC. Alternatively, you can simply drag and drop multiple FLV files at one time.

Add FLV videos

Step 3: Edit Videos (Optional).

Once FLV files are added, you can also edit and customize them if needed. You can click one of the three edit icons of Trim, Crop, Apply Effects under the added video thumbnail to enter the editing window. You’re enabled to trim, cut, crop videos, add subtitles, apply effects, adjust audio, etc.

Edit Videos

Step 4: Select the output format as MP4.

On the top-right corner of the interface, open drop down menu next to Convert all files to: option. From the pop-up window, select MP4 and the desired resolution from the Video tab.

To change the parameters of the video with respect to bitrate, resolution, and others, click +Create Custom option, through which you can compress video easily.

Select Output Format as MP4

Step 5: Convert FLV to MP4.

Finally, select the destination folder on your system for saving converted file at the Output tab. Hit Convert All to start with the process of conversion.

Convert FLV to MP4

The same steps as above can be followed if you want to convert MP4 to FLV. Add MP4 as the input file, and select FLV as the output file. Install Wondershare UniConverter to convert FLV files to MP4, and enjoy playing your Internet videos on all portable devices freely.

FLV to MP4

Using Online UniConverter (originally, it's easy to convert FLV files to a variety of other formats.

Convert FLV to AVI (Audio Video Interleave)

Convert FLV to WMV (Windows Media Video)

Convert FLV to MOV (QuickTime File Format)

Convert FLV to MKV (Matroska Multimedia Container)

Convert FLV to MPEG (Moving Picture Experts Group)

Convert FLV to WEBM (WEB Media)

Convert FLV to WAV (Waveform Audio File Format)

Convert FLV to MP3 (MP3 Audio Format)

Convert FLV to VOB (Video Object)

Other Useful Conversions You May Concern:

MKV to MP4

WebM to MP4

AVI to MP4

MP4 to MP3 - Convert file now