Convert MP4 to FLV in bulk.
Large MP4 files are supported.

Max size: 200 MB per file

You can convert MP4 Learn more about MP4 files to

Video
Video
Audio/Music
Audio/Music
Image/Picture
Image/Picture


How to convert MP4 to FLV?

You can convert MP4 to FLV with MConverter in three easy steps:
  1. Choose MP4 files from your device
    At the top of this page, drag and drop your MP4's.
    You can also click to select MP4 files using your operating system's file picker.
    Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an MP4 file you have copied to clipboard.
    Converting a folder with MP4 files to FLV is also supported: simply paste or drag and drop it.
  2. Click or tap on FLV from the list of target formats
    Alternatively, you can use the search field to quickly find the format you need, whether it's FLV or something else.
  3. Download your FLV files, after MConverter has finished processing them
    There's an option to automatically download the converted FLV files, so you don't have to press the download icon for each FLV.
    You may see a share icon as well. Use it to directly share the FLVs with other apps.

About the formats

Extension mp4
Category Video file formats
Developed by MPEG (Moving Picture Experts Group)
Mime type video/mp4

Description

MP4 (short for MPEG-4 Part 14) files store multimedia - video, audio and subtitles. Websites frequently use them for displaying videos because the MP4 format is universally supported.
However, newer video formats, such as WebM, produce smaller file sizes with almost no quality loss. Therefore, you can free up storage by converting your videos to WebM.
Extension flv
Category Video file formats
Developed by Macromedia, now Adobe
Mime type video/x-flv

Description

FLV is a Flash video file. It was created for online streaming of video content using the Adobe Flash Player. However, since Flash reached end-of-life in 2020, the video format is now only used by Adobe Animate and playable by some third party apps like VLC.

Common questions about converting MP4 to FLV

Can I convert MP4 to FLV in bulk?

Yes, MConverter supports batch converting of multiple MP4's to FLVs simultaneously. You can even drag and drop folders containing MP4's to convert to FLV.
Pasting MP4 files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert an MP4 file to FLV, if its size is 1 GB?

Yes, with MConverter Premium you can convert big MP4's, up to 1 gigabyte each.
The free version lets you convert files up to 200 MB. If you need to convert MP4 files over 200 megabytes, try MConverter Premium.

Is converting MP4's to FLV safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your MP4 files are only accessible by you. 24 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your MP4's and other converted files immediately after finishing the conversion by clicking the bin icon.
Join others who have trusted us to convert over 2,645,658 files so far.

How long does it take to convert MP4 to FLV?

For most videos, the wait could be a few minutes or less. However, MConverter also supports converting larger videos, meaning that it could take a while (up to over an hour, for example).
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