Free FLV to AVI Converter Online - Change My File

Fast, Free, Secure & Simple

Looking to convert FLV to AVI online without downloading any software? You’re in the right place! Change My File is the best FLV to AVI converter that lets you quickly upload your FLV video and convert it to AVI in just a few clicks. It’s 100% free, browser-based, and works on all devices.

Why Use Our Free FLV to AVI Converter?

FLV files (Flash Video) are no longer supported by many modern devices and media players. AVI (Audio Video Interleave), on the other hand, is widely compatible and easy to edit or share. Whether you’re converting for editing, uploading to social platforms, or archiving old Flash content, our online FLV to AVI converter makes the process seamless.

Key Features:

Free FLV to AVI Converter Online
No software or registration required
Fast file upload and conversion
Works on Windows, Mac, Android & iOS
Retains original video quality

How to Convert FLV to AVI Online for Free?

Converting your FLV file has never been easier:

Upload your FLV file using the "Choose File" button
Click Convert to AVI
Download your AVI file instantly

No waiting, no pop-ups, no ads—just a smooth conversion experience.

Best Tool to Convert FLV Files to AVI Format

Whether you’re a content creator, student, or video enthusiast, our free FLV to AVI converter online helps you:

Make FLV videos compatible with media players
Edit FLV videos using software that supports AVI
Share AVI files easily across platforms

This is why thousands trust Change My File as their go-to free video file converter.

Supported File Details

Input format: FLV (Flash Video File)
Output format: AVI (Audio Video Interleave)
Max file size: Up to 1GB
Conversion time: Usually under 1 minute

Safe, Secure & Privacy-Focused

Your video files are safe with us. All uploads are encrypted and automatically deleted from our servers within hours. We never store your data or share files.

Convert FLV to AVI on Any Device – Anytime, Anywhere

Use our FLV to AVI video converter online on desktop or mobile. No need for downloads. All you need is an internet connection and your FLV file.

Frequently Asked Questions

Is this FLV to AVI converter really free?

Yes, it's 100% free and there are no hidden charges or sign-ups required.

Can I convert FLV to AVI on Mac or iPhone?

Absolutely! Our tool works flawlessly on Mac, iOS, Windows, Android, and even Linux.

Will the video quality stay the same?

Yes, we use high-quality encoding to maintain original video resolution and clarity.

Start Your Free FLV to AVI Conversion Now!

Don’t let old FLV files sit unused. Use Change My File – the best free FLV to AVI converter to make your videos usable again. Upload your FLV file now and convert to AVI format instantly.

FLV Technical Specifications

File extension	.flv
File category	Video
Stands for	Flash Video
Developer	Adobe Systems (initially developed by Macromedia)
Overview	It is a multimedia container file format which is used over the internet to provide digital video content to the users. Digital video content includes TV shows or series, movies; etc. Adobe Flash Player 6 and new versions provide support to it. To play flash video from Personal Computer and online websites we need an FLV player. Although, Apple iOS does not support Flash, yet, with the help of additional software, one can play flash videos. Also, it is a common platform for various websites that allows video streaming such as YouTube, Yahoo! Video, Metacafe, Hulu; etc . With the help of screen capturing and other recording programs, screen recording is possible for flash videos. Furthermore, it also supports a screen share or screen cast.
Technical description	FLV files mostly have video bitstreams which are one of the variants of H.263 Standard and it is named as Sorenson park(FourCC FLV1). The SWF files and this extension uses the identical way to encode data. There are two variants available for screen casting. First one is lossy as it reduces colour depth or bit depth (number of bits used to indicate the colour of one pixel) and compresses the data. The second type is only compatible with Flash Player 8 and the newer versions. Both these aforesaid kinds are based on bitmap tile. Uncompressed Audio or ADPCM format audio is also supported by it. This format has header and packets in its video structure. A standard header includes signature, version, flags and header size.
Links	wikipedia.org (opens in new tab - official documentation)

AVI Technical Specifications

File extension	.avi
File category	Video
Stands for	Audio Video Interleave
Developer	Microsoft
Overview	This file format stores both audio and video files for playback purposes. It is used to store files that are of high quality as file compression is less in this extension. Windows OS uses this as the default format to store multimedia files but other operating systems such as Linux, Unix and Mac also support this. The data in it is encoded by various codecs such as DivX and XviD. There is a variety of software that support these files. For instance- Microsoft Movies & TV, Windows Media Player and Apple QuickTime player; etc. Due to its low compression ability, it is widely used to make short movies, promos and advertisements; etc. It should be noted that AVI format result in large files that is why it is rarely used for video streaming.
Technical description	In AVI extension, file's data is divided into blocks or chunks as it is a sub-format of RIFF(Resource Interchange file format). An identification of each chunk is done by FourCC tag. File header and metadata of video(like height, width and frame rate) are identified by ‘hdrl tag' which is sub-chunk and it is mandatory. There is one another chunk which is also obligatory that is ‘movi tag' and it has actual audio or video data. The last sub-chunk is ‘idx1 tag' and it records the offsets of the data chunks. This ‘idx1 tag' is completely optional. There is one limitation of this format that it does not contain variable bitrate data.
Links	wikipedia.org (opens in new tab - official documentation)

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