Free WMV to FLV Converter Online

Fast, Free, Secure & Simple

How to Convert WMV to FLV

Convert WMV into FLV for Flash-based sites.

Upload your WMV file
Click Upload and select your WMV file from your device.
Confirm FLV as output
The FLV format is auto-selected for this page—confirm it (or choose if needed). Use FLV only if specifically needed.
Convert and download
Click Convert Now and download your FLV file. Test playback on that platform. Note: Flash is no longer supported in browsers.

💡 Example: Upload a WMV tutorial as FLV to an older e-learning site.

Looking for the best WMV to FLV converter? Welcome to Change My File, your go-to platform to convert WMV to FLV online for free—no software installation required!

Free WMV to FLV Converter – Instant & Reliable

With just a few clicks, you can upload your WMV file and convert it to FLV instantly. Whether you're optimizing for web streaming or reducing video file size, our online WMV to FLV conversion tool ensures smooth, high-quality results.

100% Free & Secure
No Sign-Up Required
Fast Upload & Conversion Speed
Supports All WMV File Sizes

Why Convert WMV to FLV Format?

The FLV (Flash Video) format is still popular for online streaming, especially in legacy platforms and low-bandwidth situations. By converting WMV to FLV, you get:

Faster streaming speeds
Smaller file sizes
Better browser compatibility (for older systems)
Easy embedding in websites

How to Convert WMV to FLV Online Free

Step 1: Click the upload button and select your WMV file

Step 2: Our tool will begin converting your file automatically

Step 3: Download the converted FLV file instantly

It’s that simple. No need for complicated video software or downloads!

Best Online WMV to FLV Converter – No Software Needed

Why download bulky software when you can convert WMV to FLV online with lightning speed? Change My File supports high-quality conversion in your browser – from desktops, laptops, and even mobile devices.

Compatible with Windows, macOS, Android, and iOS!

Safe & Secure WMV to FLV File Converter

We care about your privacy. All files are encrypted during upload and removed from our servers after conversion. You can trust Change My File to deliver a secure and ad-free WMV to FLV conversion experience every time.

Common Use Cases for WMV to FLV Conversion

Embedding videos on older websites
Compressing WMV files for low-data usage
Improving compatibility with Flash-based players
Reducing video file size without major quality loss

Try the Best Free WMV to FLV Converter Now

Stop wasting time on complicated software. With Change My File, you can convert WMV to FLV online for free in seconds. Fast, simple, and secure—exactly how file conversion should be.

Upload your WMV file now and get your FLV video instantly. No cost. No hassle.

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	.wmv
File category	Video
Stands for	Windows Media Video
Developer	Microsoft
Overview	It is a video format based on the Microsoft Advanced systems format(ASF) and it is a sequel of video codecs. There are three varied codecs for this format. Actual WMA compression technique was developed only for internet streaming applications and it gave tough competition to RealVideo. The other compression techniques include WMV screen and WMV image which are designed for specialized content. These files are compatible with both Mac and Personal computers ;etc. This format attracts companies those want to sell audios and videos online due to DRM technology. This is the most popular among its family members. Interlaced videos can also be played using this video extension. There is an advanced version named WMA 9 which automatically comes into play when video resolution exceeds 300,000 pixels and the bitrate 1000 kbit/sec.
Technical description	It is based on DRM(Direct Rights Management), thereby, it restricts users from making unauthorized copies that are often bought online from stores. HD DVD and Blu-ray Disc are formats for physical delivery which were adapted when WMV version was standardized by the SMPTE(Society of Motion picture and Television Engineers). It is now termed as VC-1. MPEG-4 AVC, AVS and MPEG-4 ASP are other competitors against this format. Furthermore, it can also provide support to the variable bit rate, average bit rate and constant bit rate. It enables makers to use non-square pixels as well. Lastly, it can process videos using frame interpolation in which intermediate animation frames are created between the existing frames.
Links	wikipedia.org (opens in new tab - official documentation)

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