EaseUS Video Converter

A 4K video converter to convert video or audio files to 1000+ formats at 30X faster speed.

  • Convert video to MP4, AVI, MOV, MKV, MPG, and other 500+ formats
  • Convert audio to desired formats, like MP3, M4A, MAV, M4R, AIFF, etc.
  • Extract audio from video or convert audio to a wide range of video formats
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Windows 11/10/8/7
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macOS 10.13 or later

How to Convert MP4 to FLV with Best 5 Ways

Melissa Lee updated on Mar 15, 2023 | Home > Video Converter Tips

MP4 (MPEG-4) is a standardized video container for both audio and video. There is no doubt that you can play videos in this format on all devices and players, but it's not the best choice for web streaming. On the contrary, the FLV (Flash Video File) container is suitable for video streaming on the internet for many reasons.

For example, the file size of an FLV video is smaller than that of the same video in MP4 format, and this is the main reason people need to convert MP4 to Flash file format (FLV). Indeed, a great MP4 to FLV Converter is indispensable for the conversion. This post will give you a list of the available converters on different platforms. Keep reading and select the best one for you.

How to Convert MP4 to FLV with EaseUS Video Converter - Windows

Whenever you need a remarkable and impressive Windows converter, EaseUS Video Converter should be your way to go. Its fantastic support of 1000+ formats and flawless conversion makes this software distinguishable among all. So, converting MP4 to FLV is not a difficult task by using it. You can also adjust audio and video codecs, i.e., bitrate, frame rate, channel, resolution, etc., without effort.

Sometimes you may have to process several videos within a short duration, but most video converters work slowly. Don't worry because this MP4 to FLV converter can save you a lot of time. With the help of GPU acceleration, this software is able to work 30 times faster than other converters. As it also supports batch conversion, many MP4 videos can be converted to FLV format at once. Merging different videos to make a single file is also possible, and this feature helps you manage the video files efficiently.

Key Features:

  • Best free video converter for beginners
  • Clean and intuitive interface
  • Convert 8K and 4K videos without losing quality
  • Support more than 1000 formats, including MOV, MP3, MKV, WebM, etc.
  • Equipped with an audio extractor and file merger

If you want to convert your MP4 videos to FLV format while keeping a high resolution, this software is the go-to choice. Click on the below button to download it now.

  Free Download
Windows 11/10/8/7
  Free Download
macOS 10.13 or later

Method of Converting MP4 to FLV with EaseUS Video Converter:

Step 1. Launch EaseUS Video Converter on your computer. Choose the "Video Converter" option on your left side, and then click on the "Choose Files" button to import the video you want to convert.

import mp4 to converter

Step 2. Click on the "Settings" button, and select FLV as the output format. This software allows you to adjust the aspect ratio, bitrate, etc.

set flv as output format

Step 3. After importing the source video, click on the "Convert" button to start the conversion. If there are a lot of videos you want to convert, the "Convert All" button is what you need.

convert video to flv

Step 4. A few seconds later, you can go to the "Finished" tab to find the converted FLV video. This software offers you a built-in media player to preview the video.

save video as flv

How to Convert MP4 to FLV with Stellar Converter - Windows

Stellar Converter is a powerful Windows/Mac software that aids you in converting your audio and video files to all the popular formats, including MP4 to FLV. As this software supports advanced settings, you can join different videos together. If you want to merge those converted FLV videos into one, don't forget this feature. In addition to that, the video quality will be kept in the conversion.

The software allows you to convert files from various sources, i.e., camcorders, players, and mobile phones. If you are in need of editing the videos, this software offers you a lot of tools, including adding subtitles, watermarks, replacing audio tracks, and cropping videos. However, the drawback is that it doesn't provide all the features in the free version, and you have to buy the activation key to make them available.

Stellar Converter MP4 to FLV Converter Windows

Here are the steps to convert MP4 to Flash with Stellar Converter:

Step 1. Download, install, and then open Stellar Converter for Audio Video. Click "Add File" to upload your MP4 video.

Step 2. From the drop-down list of "Output," choose "FLV." You can change the settings if required.

Step 3. Click "Convert" > "Browser" to select the destination folder and hit the "Save" button to start conversion. That's all.

How to Convert MP4 to FLV with VLC Media Player - Mac

VLC Media Player is an all-in-one Mac Converter that offers conversions between almost all formats, including compressed and uncompressed formats. This converter and media player lets you convert MP4 to flash by providing good output file quality. You can even import MP4 videos directly via URL, play them, and convert them to FLV or other formats. 

Leaving zero-copy on the GPU is what makes it an amazing and credible one to choose. As it's free of any user-tracking and ads, this software enables you to get an excellent experience. Plus, you can perform different functions like adjusting the video aspect ratio, applying video effects, recording and rotating your videos.

VLC Media Player Convert FLV to Flash Mac

How to convert MP4 to FLV via VLC Media Player:

Step 1. After downloading and installation, open VLC Media Player on your Mac. Click "File" > "Convert/Stream" to activate the file converting mode.

Step 2. Next, import your MP4 file by clicking on the "Open Media…" button. Then select FLV as the output format from the "Choose Profile" tab.

Step 3. Now, click the "Save As" option to choose the destination folder and rename the file. Press the "Save" button. Then, again click on the "Save" button to start the conversion.

How to Convert MP4 to FLV with Online Converter - Online

The Online Converter is an excellent option when you need a free MP4 to FLV online converter. This multimedia MP4 to FLV converter also supports various audio/video formats, including MKV, AVI, WMV, MPG, and many more. This service is accessible from your PC or phone, but the conversion speed depends upon the upload file size. By the way, the maximum uploading file size limit is 200MB.

The conversion is straightforward with a few clicks, and cutting video clips is also available. What makes it secure to use is its optional feature to delete your files from the servers yourself. Otherwise, this online tool will automatically delete the files after 24 hours.

Online Video Converter MP4 to FLV

Let's explore how to convert MP4 to Flash by using Online Converter:

Step 1. Open the website of Online Converter on your preferred browser and choose "Video to FLV Converter."

Step 2. Import your MP4 file by clicking "Choose File."

Step 3. Press the "Convert" button. After getting your conversion done, click "Download Now" to save the converted FLV video to your PC.

How to Convert MP4 to FLV with Online Video Converter - Online

If you are looking for an online free converter that can assist you in converting MP4 to FLV, then Online Video Converter should be a fantastic choice. It offers almost 40+ formats to convert your files with multiple combinations. Unlike other online converters, you will get a faster conversion because of the powerful server of this tool.

Importing your files is straightforward because of the support of Google Drive and Dropbox so that you can upload the MP4 videos to this online tool directly from the cloud. Plus, you can use enhanced settings to compress your HD videos and reduce their file size. This tool is highly reliable because your files will get deleted immediately after conversion.

Online Converter MP4 to Flash

Here is the tutorial for converting MP4 to FLV through Online Video Converter:

Step 1. Open the Online Video Converter website on your browser. Click "Add Files" and upload your MP4 file.

Step 2. Choose Video and then FLV as the output format. You can use the settings tab if needed.

Step 3. Click "Convert." The converted file will be automatically downloaded on your device.


You can use all the above tools to convert MP4 to Flash. For one-time users, it is better to go for online tools for convenience. But if you have to convert a batch of videos or require some advanced tools, like a video merger or an audio extractor, offline MP4 to FLV converters are the best choice. 

EaseUS Video Converter is an ideal software in this regard as it provides you with a unique user experience and quick conversion of MP4 to FLV. Moreover, advanced tools are available in this software. It's time to download it now!

  Free Download
Windows 11/10/8/7
  Free Download
macOS 10.13 or later

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