Convert WMV to FLV

WMV to FLV converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

WMV

WMV (Windows Media Video) is a video compression format developed by Microsoft as part of the Windows Media framework. WMV was designed for streaming over the internet and supports DRM copy protection. It is natively supported by Windows Media Player and remains common in corporate and Windows-centric video archives.

Developer: Microsoft
Initial release: 2003
Compression: Lossy
Color depth: up to 10-bit
Transparency: No
Animation: Yes

Best for

Windows-centric corporate video archives
Streaming video on legacy Windows systems
DRM-protected Windows Media content
Internal enterprise video distribution
Windows Media Player playback

Pros

+Good quality at low bitrates
+Native Windows Media Player support
+Supports DRM copy protection
+Designed for internet streaming

Cons

−Poor support on non-Windows platforms
−Proprietary Microsoft format
−Fewer modern editing tools support it
−Less efficient than H.264/HEVC

FLV

FLV (Flash Video) is a container format used to deliver video over the web using Adobe Flash Player. Although Flash has been discontinued, FLV files remain common in older video archives. FLV typically wraps Sorenson Spark or VP6 video and MP3 or AAC audio.

Developer: Adobe (Macromedia)
Initial release: 2002
Compression: Lossy
Color depth: 8-bit
Transparency: No
Animation: Yes

Best for

Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips

Pros

+Compact streaming for its era
+Wrapped common codecs like Sorenson Spark and VP6
+Widely used in historical web video
+Simple container structure

Cons

−Flash Player discontinued and unsupported
−Low maximum quality and 8-bit color
−No modern codec or HDR support
−Security risks in legacy Flash runtime

How to convert WMV to FLV

1
Select WMV files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose flv — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your flv file right away.

WMV vs FLV

Property	WMV	FLV
Compression	Lossy	Lossy
Color depth	up to 10-bit	8-bit
Multi-track	Yes	Yes
DRM support	Yes	No
Open format	No	No

When to use WMV vs FLV

WMV

Windows-centric corporate video archives
Streaming video on legacy Windows systems
DRM-protected Windows Media content
Internal enterprise video distribution
Windows Media Player playback

FLV

Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips

Use cases for WMV → FLV

Windows-centric corporate video archives
Streaming video on legacy Windows systems
DRM-protected Windows Media content
Internal enterprise video distribution
Windows Media Player playback
Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips

Frequently Asked Questions

Is converting WMV to FLV free?

Yes. This WMV → FLV converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert WMV to FLV?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my WMV files uploaded to a server?

No. Files never leave your device. The entire WMV → FLV conversion runs locally in your browser, so your data stays private.

Can I convert multiple WMV files at once?

Yes — batch conversion is supported. Add as many WMV files as you like and convert them to FLV in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting WMV to FLV reduce the quality?

Because both formats use lossy compression, the FLV output will not bring back any quality that has already been lost in your WMV file. Avoid repeated re-encoding to keep the best quality.

Does FLV support transparency?

No — FLV has no alpha channel. Transparent areas of your WMV file will be filled with a solid background colour in the converted file.

How will the file size change after converting WMV to FLV?

Both formats use comparable compression, so the FLV output will be similar in size to your WMV file — typically within 10–20% of each other.

Related Conversions

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert WMV to FLV Quality Rating

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