Convert FLV to MP4

Online UniConverter helps convert your FLV files to MP4 video format for free.

Convert Your Video
convert flv to mp4 online

How to convert FLV to MP4 video file?

upload your FLV file

Step 1
Upload FLV File

Add FLV file(s) that you want to convert to MP4 or any other video format.

choose MP4 as output format

Step 2
Convert FLV to MP4 Free

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

Download FLV online

Step 3
Download FLV Video Online

When the conversion process is complete, click the Download button to save the MP4 files.

Information about FLV and MP4 file formats

File Extension .flv FLV Converter
Description FLV (Flash Video) is a video container format developed by Adobe Systems and comes with a .flv filename format. FLV is primarily used to stream audio, video, and text data such as subtitles on sites like YouTube, Metacafe, and more. It supports MPEG-4 Part 10 () video codec and AAC sound.
Associated Programs RealPlayer
Apple QuicTime Player
MPLayer
VLC Media Player
Developed By Adobe Systems Incorporated
MIME type video/x-flv
Useful Links What is a FLV file
File Extension .mp4 MP4 Converter
Description MP4 (MPEG-4 Part 14) is a video container format based on QuickTime MOV. But unlike MOV, it adds support for other MPEG features. MP4 supports video (MPEG-4 Part 2 and MPEG-4 Part 10/), audio (MP3, AAC, SLS, TTSI, and ALAC), and subtitles (MPEG-4 timed text). It's this codec combination that gives MP4 its flexibility.
Associated Programs Apple QuickTime Player
VLC Media Player
5KPLayer
Windows Media Player
Developed By International Organization for Standardization
MIME Type video/mp4
Useful Links What is a MP4 file

People also ask about FLV & MP4

  • 1. How can I convert FLV to mp4 for free?

    Windows users probably know that FLV is not an easy file format to deal with. But the good news is that you can free convert FLV to MP4 on your Mac or PC through visiting our home page.

  • Sadly for PC users, Windows doesn't support the opening of FLV files directly. Simply put, you could fail to open FLV with Windows Media Player. Alternatively, you can install Wondershare UniConverter and convert FLV to MP4 quickly and losslessly.
    Step 1: On the Converter window, just drag-and-drop your FLV file to the operating screen.
    Step 2: Choose MP4 on the Output Format menu.
    Step 3: Hit Start All to transcode FLV to MP4 with Wondershare Online UniConverter.

  • Both MP4 and FLV are container formats. That is, they just store media codecs inside them. That said, MP4 is slightly bigger than FLV at a similar resolution and file duration. But that notwithstanding, it's better to convert FLV to MP4 format because MP4 is more device and website-friendly than FLV.

  • FLV is an Adobe Flash video file that's becoming less common, because most sites are moving to HTM5. That said, very few players can play FLV files locally. Thankfully, you can adopt VLC Media Player or Windows Media Player to view FLV videos. However for the latter, you need to install CCCP codec.

    Pro Tip: If you are looking for a handy FLV to MP4 converter free download, don't omit our mighty media player, called Wondershare UniConverter - desktop vesion of Online UniConverter.

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 an apt choice. The software working as expert FLV to MP4 video converter, looks after all conversion related needs. Supporting more than 1000 formats, you can convert MP4 to FLV or other formats in batch easily. To proceed on how to convert FLV to MP4, follow the following mentioned steps.

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Add FLV videos
Select Output Format as MP4
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 conversion quality rating:
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