How to convert MP4 to FLV? This article describes the common conversion steps, including downloading the converter, uploading an MP4 file, setting FLV as the converted format, and starting the conversion. To do this conversion, the article shows 3 effective video converters, including MiniTool Video Converter, Freemake Video Converter, and Online-Convert.
MP4, developed by MPEG, is a widely compatible media container that uses MP4 video encoding and AAC audio encoding. It works on virtually all devices and players and supports DVD-style menus, switchable subtitles, and video chapters.
FLV (Flash Video) was developed by Adobe. It works with SWF files and the Flash plugin, but can only be played on specific media players. FLV doesn’t offer menus, chapters, or removable subtitles—subtitles are permanently embedded in the video.
MP4 VS FLV
Speaking of MP4 vs FLV, MP4 is superior to FLV in many ways.
- MP4 supports menus just like DVDs, but FLV does not.
- MP4 also supports captioning or subtitles, so MP4 videos can have several subtitles, and you can choose from any subtitle. FLV does not support subtitles. Subtitles are usually encoded to the video, and cannot be changed.
- MP4 also supports chaptering just like DVDs, but FLV doesn’t. Each chapter divides the video into smaller parts to help the viewer to stop it where it has to do other things while watching the video.
- MP4 is compatible with all video players and websites. In addition to desktops, you can also open MP4 on iDevices and Android.
How to Convert MP4 to FLV?
After you have got some information about MP4 and FLV, you may want to know how to convert MP4 to FLV. There are two methods offered for you to convert MP4 to FLV:
- MiniTool Video Converter
- Freemake Video Converter
- Online-Convert
1. MiniTool Video Converter
If you want to convert MP4 to FLV offline, MiniTool Video Converter is your best choice. It allows you to do a conversion at a fast speed.
Main Features
- It supports more than 1000 output formats.
- It enables you to perform batch video conversion at once.
- It is free and there are no ads.
- It allows you to change some parameters, such as resolution, frame rate, bitrate, and sample rate.
- It is only suitable for the Windows platform.
The following is a guide on how to convert MP4 to FLV using MiniTool Video Converter.
Fast Track:
- Install MiniTool Video Converter
- Upload MP4 video
- Set FLV as the converted format
- Start conversion
- View the converted video
Step 1: Obtain MiniTool Video Converter
Download and install MiniTool Video Converter. Then, run this application on the computer.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2: Upload the Target File
In the default Convert Video tab, click on the Plus option to import the MP4 video.

Step 3: Set FLV as the Output Format
Click on the Gear icon to open the format settings window. Next, switch to the Video tab and choose FLV. Then, choose a proper resolution, such as 4K Video.

Step 4: Begin the Conversion
Before the MP4 to FLV conversion, expand the Output option to pick a storage location for the converted video. Then, click on the Convert button to begin the conversion process.

Step 5: Check and Locate the Result
Once the conversion ends, the converted video will be taken to the Completed tab. Here, click on the Play icon to check it. Or click on the Folder icon to locate the converted video on the computer.

MiniTool Video Converter not only supports MP4 to FLV conversion but also supports batch conversion of up to 5 tasks.
MiniTool Video Converter supports you to convert up to 5 files at once. You can change the maximum number of conversion tasks by clicking the Settings option under the menu.
2. Freemake Video Converter
You can also choose Freemake Video Converter to convert MP4 to FLV. It also only supports the Windows platform. And you can download and alter streaming clips from Vimeo, Vevo, Dailymotion, and so on.
Main Features
- It supports you to convert 500+ video and audio file formats.
- It supports embedding videos to websites online.
- It allows you to convert video files of any size or format.
- It allows you to convert movies with subtitles.
- It supports multiple languages.
Now follow the simple guide to convert MP4 to FLV.
Step 1: Download and launch the Freemake Video Converter.
Step 2: Click +Video to add the MP4 file and then click the to FLV button at the bottom.
Step 3: Choose a location that you want to save your new FLV videos and then click Convert.

3. Online-Convert
The first online MP4 to FLV converter that you can use is Online-Convert. It is a 100% web-based converter, so you don’t need to download any software. It allows you to change video bitrate, frame rate, and so on.
Main Features
- It allows you to upload files from your computer or URL as well as Dropbox and Google Drive.
- It allows you to convert video, audio, image, document, archive, and eBook.
- It supports 5 languages.
Follow the guide to convert MP4 to FLV:
- Go to the official site of Online-Convert, then choose Convert to FLV from the drop-down menu in the Video converter.
- Upload your MP4 files and then click Start conversion.

Bottom Line
How to convert MP4 to FLV? This post has introduced multiple MP4 to FLV converters and detailed instructions for you. In order to convert files offline, it is highly recommended to use MiniTool Video Converter.
If you have any confusion about the instructions or have better MP4 to FLV converters, leave a comment below or send an email to support@minitool.com.
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