Step 1: Drop your WMV files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted FLV files.
WMV to FLV Conversion FAQ
How do I convert a WMV file to FLV?
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Upload your WMV file using the picker above and the converter detects the source type and runs the WMV → FLV pipeline. The result downloads automatically when conversion completes; no account needed for one-off conversions.
My WMV footage shows comb lines on movement — will that carry into the FLV?
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It will unless you deinterlace, and WMV content very often is interlaced because the format comes from the broadcast and DVD era. Interlaced frames store two half-height fields captured a fiftieth of a second apart; on a progressive-scan phone or monitor that reads as horizontal combing on anything that moves. Turn on the deinterlace option and the encoder weaves the fields into whole progressive frames before writing the FLV. WMV is Windows Media Video, Microsoft’s ASF-based format from the Windows XP era.
Why does my WMV file fail to convert to FLV?
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Almost always DRM. Some WMV files are encrypted at the bitstream level by the store or software that issued them, and an encrypted stream cannot be decoded by us or by anything else without the licence key. Files you recorded, exported or downloaded unprotected convert normally; a licensed purchase will not, and no converter can honestly promise otherwise. WMV is effectively a dead end: macOS, iOS, Android and every browser need third-party decoders, and some WMV files carry DRM that cannot be converted at all.
What happens to 5.1 surround audio when converting WMV to FLV?
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It is downmixed to stereo, because FLV has no dependable multichannel path. The fold-down uses the standard ITU coefficients so dialogue in the centre channel stays intelligible and the surrounds come in at reduced level rather than vanishing. Anything that relied on discrete channel placement is gone after that. No current browser, phone or TV can play FLV — anything still in this container has to be moved out of it to remain watchable.
Is there any point converting between two legacy formats like WMV and FLV?
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Only if a specific piece of equipment demands the target. Both formats come from the same pre-H.264 era, so neither conversion buys efficiency, quality or future-proofing — it buys compatibility with one particular device. If the goal is to keep the footage usable long-term, convert to a current container instead of sideways.
Is the WMV to FLV converter free?
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Yes — basic WMV → FLV conversion is free with no registration. Premium adds higher per-file size limits, more parallel batch workers, and removes ads.
How big a WMV file can I convert to FLV?
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Free accounts: up to 100 MB per WMV file. Premium: typically 1 GB per file, depending on the WMV source type. Very large files are split into chunks server-side when the FLV format allows.
Will conversion change the content of my WMV?
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Conversion preserves all information that both WMV and FLV can represent. Format-specific features that the FLV format doesn't support (e.g. vector data in raster output, formulas in plain-text output) are rasterized or stripped — see the format-specific notes on the result page.
Can I convert many WMV files to FLV at once?
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Yes — drop multiple WMV files into the upload zone and they are queued in parallel. Premium has more parallel workers; on a 50-file batch this is the difference between minutes and seconds.
Does the WMV to FLV converter work on phones and tablets?
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Yes — the UI is responsive and the conversion pipeline runs server-side, so mobile devices upload-then-download just like desktops. iOS and Android browser file pickers (camera roll, Files app) work end-to-end.
Which browsers does the WMV to FLV converter support?
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Chrome, Firefox, Safari (15+), Edge, and Opera. The converter uses standard `<input type="file">` upload — no WebAssembly or PWA dependencies — so even older browsers work.
Are my WMV files kept private?
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Yes — uploaded WMV files are processed in isolated workers and deleted within minutes. We never view, retain, or share content. See /privacy/ for the data-retention window.
