Free AVI to FLV Converter Online - Change My File

Fast, Free, Secure & Simple

How to Convert AVI to FLV

Convert AVI to FLV for legacy Flash pipelines.

Upload your AVI file
Click Upload and select your AVI file from your device.
Confirm FLV as output
The FLV format is auto-selected for this page—confirm it (or choose if needed). Only if a platform needs FLV.
Convert and download
Click Convert Now and download your FLV file. Confirm the destination plays it. Note: Flash is deprecated.

💡 Example: Upload an AVI training clip as FLV to an older LMS.

Looking for the best AVI to FLV converter online? You’ve just found it! Change My File offers a powerful yet simple solution to convert AVI to FLV for free, right in your browser. No downloads, no sign-ups – just upload your AVI video and get a high-quality FLV output in seconds.

Why Convert AVI to FLV?

AVI (Audio Video Interleave) is a popular video format, but it often results in large file sizes and may not be compatible with all platforms. FLV (Flash Video), on the other hand, is lightweight, fast-loading, and perfect for streaming on websites.

By converting AVI to FLV, you:

Reduce file size for faster uploads and playback
Improve compatibility with older video players and browsers
Enable smoother streaming experiences

How to Convert AVI to FLV Online for Free

Follow these simple steps to convert your AVI file to FLV format:

Click Upload and select your AVI video
Our tool will instantly begin processing the file
Download your FLV video in just a few seconds

There’s no software to install. Everything is done securely in the cloud with lightning-fast speeds.

Safe & Secure AVI to FLV Conversion

At Change My File, we prioritize your privacy. All uploaded files are automatically deleted from our servers after conversion. Your videos remain confidential and are never shared with third parties.

Features of Our AVI to FLV Converter

100% Free – No hidden charges
Fast Conversion – Save time with quick file processing
No Watermark – Clean video output
Mobile Friendly – Convert AVI to FLV from any device
High Compatibility – Works with all browsers

Who Should Use This Free AVI to FLV Converter?

Our online converter is perfect for:

Content creators optimizing videos for websites
Digital marketers who need smaller file sizes for campaigns
Students and educators creating FLV videos for e-learning platforms
Web developers embedding fast-loading videos

Frequently Asked Questions (FAQs)

Can I convert AVI to FLV without installing software?

Yes! Our online AVI to FLV converter works entirely in your browser – no software needed.

Is the AVI to FLV conversion free?

Absolutely. You can convert unlimited files for free with no limitations.

Will the video lose quality after conversion?

No. Our tool is optimized to maintain high video quality while reducing file size.

Start Your Free AVI to FLV Conversion Now!

Don’t wait—start using the best free AVI to FLV converter online and experience fast, secure, and high-quality video conversion.

Click Upload File and convert AVI to FLV in seconds!

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)

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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