Behind every video is a file extension that determines how it is handled by different programs. To date, hundreds of these file extensions exist and many are becoming obsolete because of the advances in technology. FLV video is a good example, which uses Adobe Flash Player or Adobe Air to transmit video or audio over the internet. For many years, it has been the standard video format used by nearly all video websites, including YouTube, Vimeo and more but many streaming sites are now dropping it because of its weakness in terms of security. Besides that, not many native operating systems or applications support this file extension in the present day and a good example is Apple’s iOS. It is a good idea to convert the FLV videos, and AVI video can be very suitable in this case. AVI stands for Audio Video Interleave, and this video file extension was developed by Microsoft. It has several advantages, and the biggest one is its ease of use and universality. It can use less compression as compared to other formats and at the same time preserving good video quality. We will introduce software tools that you can use to convert FLV video to AVI video.

Part 1. Convert FLV to AVI with Leawo Video Converter

Leawo Video Convertercan easily convert over 180 video and audio formats with ease, and best of all it does that while preserving the original video quality. For those who are professionals, this software can adjust video and audio parameters like Video Frame Rate, Audio Sample Rate, Channels, Encoder Bitrates and much more. It features an internal video player, and a video editor that will make average users feel like professionals because of ease of use. It is also multi-platform, with Windows and Mac OS versions available for users to pick. The steps below will show you how to convert FLV video to AVI video by using this professional software.

Step 1: Launch the Video Converter module. Leawo Video Converter is integrated into Leawo Prof. Media which includes 8 modules. On the main interface click on Video Converter” and this step is applicable to both Windows and Mac OS systems.


Step 2: Import the FLV video file(s). There are two ways to do this, which are either clicking the “Add Video” button which will open a browser window from where you can select the file(s), and also dragging them directly into the program.


Optional step: When you import the videos you can also play them with the built in player. You can also edit the videos with the easy to use built in a video editor, and the options include trimming, watermarking, applying effects, and converting 2D videos to 3D videos. You can also add subtitles and select audio tracks by clicking the “Subtitle” and “Audio” drop down menus.

Step 3: Select AVI as the output format. Just before the green “Convert” button, you will see a button (by default its labeled as “MP4 Video) which changes depending on the profile selection. Click it and from the drop down menu, select “Change”. Next you click “Format”, then under “Common Video” find and click “AVI”.


Step 4: Convert your video(s) to AVI. Click the green “Convert” button, and a small sidebar will pop up. Set an output directory under “Save to” box for containing the output files. Click the “Convert” button at the bottom of sidebar, which is shown above, to start conversion process.


Part 2. Convert FLV to AVI with Any Video Converter

To convert FLV video to AVI video, you can also employ Any Video Converter. This video converter can handle many file types and while it does not export to all video file formats, this video converter software includes all the basics associated with most popular media players. However, this software program is not free to use and you cannot output high quality videos with the free version. This program is also quite slow, as it took more than 25 minutes to convert a 1 hour video in our test. You can install it on Windows or Mac OS to begin.


Step 1: To import the FLV video files(s), click “Add Video(s)”  to begin the process.
Step 2: Setting the output. Any Video Converter does not allow you to edit the videos on the free version of the software, proceed to click the drop down list with the output profiles, in this case select MP4 video.
Step 3: Once you have finished with the settings, set your output destination then click “Convert Now!” to start converting your videos.

Part 3. Convert FLV to AVI with Quick AVI Creator

This software program allows a very limited number of video file types for input, which are 5 to be exact and you can only output to AVI, MP4 and MKV video which can be a disadvantage to professional users. This software tool also requires you to download some extensions for it to work properly. In our tests, we could not open some of the output videos, although the application tries to maintain the video quality. Please note that this software does not have a Mac OS entry. Follow the steps below to convert FLV video to AVI video.


Step 1: Launch the software program after installing it, and also do not forget to install the necessary extensions for the program to work properly.
Step 2: Import your FLV video file(s). Click the top button which should be for the input, and browse for your video file(s). Once you finish, click the output button which is just below the input button and select the destination of the converted videos.
Step 3: Convert your video(s) to AVI. Set your options from the few available ones on the tick boxes, then set your output format to AVI. Once you finish, click “Go!” to begin the encoding process.

Part 4. Convert FLV to AVI with HandBrake

The biggest advantage of Handbrake is that it is a free software program, and the interface is standard for both beginners and advanced users although it cannot match the versatility or simplicity of newer alternatives like Leawo Video Converter. Tinkering with settings requires time-intensive trial and error. Live preview only supports the first four minutes of video, and this software does not support many video and audio formats. It is available for both Windows and Mac OS.


Step 1: Import your FLV file(s). After opening Handbrake, click on the “Source” button at the top left. Select FLV from the drop down list. Browse for the file in its saved location and click “OK”.
Step 2: Set your output destination. Once you have chosen the source, the software will automatically ask you to select the destination. Click “Browse” to choose and select your file destination, as well as naming the file. Proceed to click “Save” if you have finished.
Step 3: Set your output settings. Go to the output settings, and click the drop down menu to set the video format to AVI.
Step 4: Start the conversion. Once you have finalized your settings, you are good to go. Click “Start” to begin the encoding process.

Part 5. Convert FLV to AVI with free FLV converter

As the name suggests, this is a free video converter program that will be free forever and that supports FLV as the main input file. Although you can output to many common video file types like MP4, AVI, MPEG, there is no support higher quality or 4K video. There is also no video editor built into the application. There is also no support for batch process, and at the moment this is only a Windows only entity and Mac OS users are out of luck. To begin, follow the steps below.


Step 1: Download and install this software converter and launch it. Click “Add files” which is represented by an open folder icon, then select your FLV video(s) from the list.
Step 2: Choose the output format as AVI video. Click the “Convert video to” drop down menu, and select the XVid MPEG 4 codec (AVI). Do not forget to set your output path as well.
Step 3: Click "Convert video” button to begin the encoding process, and the progress bar indicates how much time you have left.

Part 6. Convert FLV to AVI with FreeFileConvert

FreeFileConverter is an online converter that also supports FLV and AVI video formats. The good news is that there is no need to download software, and there are no operating system requirements. This therefore means you will need a strong and steady internet connection for uploading and downloading the video files. This is also a slower method of conversion, and the file size limit is 300MB of combined 5 files. To start, heard over to this services’ website.


Step 1: Click the “Convert” drop down menu on the website and select “Video Converter” from the list.
Step 2: Under “Input file”, click “Choose File” to upload the FLV video file(s). Under “Output file” click the drop down menu and select AVI video.
Step 3: Click “Convert” to begin uploading your video which will depend on your internet speed. Once it finishes converting online, the page will refresh and the download link will appear. Click the corresponding button to save your video file to your local disk.


In conclusion, the best software to use in this case is Leawo Video Converter for a variety of reasons which include fast conversion speeds, almost all audio and video types including 4K are supported, ease of use, built-in video editor and there is no need to worry about internet speeds since this is offline conversion. This software program also supports 11 languages, and there are many support links and tutorials for beginners on their website. Try Leawo Video Converter today!