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WMV to FLV converter

Convert WMV to FLV in seconds, free and unlimited. No upload, no sign-up, no watermark: your video never leaves your device.

Last updated

Quick answer: To convert WMV to FLV, add the WMV file to the iHateFiles WMV to FLV converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. Re-encodes the picture and sound into a FLV container.

Should you convert WMV to FLV?

A safe conversion: WMV and FLV are both lossless, so this is a change of container rather than a change to the picture.

Nothing is discarded

WMV and FLV are both lossless, so every pixel survives the move intact. Convert back and forth as often as you like; the image does not degrade.

WMV and FLV side by side

 WMVFLV
CompressionLosslessLossless
TransparencyNoNo
AnimationNoNo
Written hereYesYes

What usually goes wrong

About the WMV. A WMV that will not play anywhere may be DRM-protected rather than corrupt. No converter can remove that, and none should.

About the FLV. If you have FLV files they are probably old downloads worth rescuing, and converting them to MP4 is the way to keep them watchable.

How to convert WMV to FLV

  1. Add your WMV file. It is read from your disk and stays there.
  2. Check the settings. The output format is already set to FLV.
  3. Press convert and the FLV file is saved back to your device.

Convert FLV to WMV instead

About WMV files

Questions

How do I convert WMV to FLV?

Open this page, add your WMV file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.

Is this WMV to FLV converter free?

Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.

Are my files uploaded anywhere?

No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.

Is there a file size limit?

No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.

Will converting to FLV lose quality?

FLV is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.

Can I convert several WMV files at once?

Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.