Convert WMV to FLV Online Free
WMV is a Microsoft video format optimised for Windows playback and older streaming. FLV is a legacy Flash video format that is now largely obsolete. FileConverter turns your WMV into FLV online in seconds - free, privacy-first, and with no software to install or account to create.
Convert WMV to FLV
FLV is already selected. Add your WMV file to start.
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Add a WMV file above to start the conversion.
WMV to FLV converts between two retired streaming formats, and its only audience is a legacy Flash platform still running somewhere behind a firewall. If that describes your system, this produces the FLV it insists on.
What changes when you convert WMV to FLV
This re-encodes your footage from the WMV container into FLV, which can change the underlying codec and file size. At sensible settings quality is well preserved, but converting from a higher-quality WMV source always produces a better FLV result. Trim long clips first if you only need part of the footage.
About the WMV format
WMV offers decent compression and was common on Windows and in older PowerPoint embeds. It has poor support on Apple and mobile devices, so converting to MP4 improves compatibility. In everyday use, WMV is chosen for legacy Windows video and presentations and older streaming and download archives. It opens in Windows Media Player and VLC.
About the FLV format
FLV was the standard for streaming Flash video in the 2000s. With Flash discontinued, converting FLV to MP4 is usually necessary to play these files on modern devices and browsers. In everyday use, FLV is chosen for recovering old Flash-era recordings and archives from legacy streaming sites. It opens in VLC and legacy players only.
WMV vs FLV
WMV is best known for compact files on Windows, while FLV stands out for small files for early web streaming. Choosing between them comes down to where the file needs to go next.
Common use cases
People convert WMV to FLV for jobs such as recovering old Flash-era recordings and archives from legacy streaming sites. It is especially common when a WMV file arrives from one system but needs to work in another that standardises on FLV.
When to convert WMV to FLV
Reach for WMV to FLV when your destination expects FLV — for example recovering old Flash-era recordings and archives from legacy streaming sites. It is the right move when you receive a WMV file but the app, website, or person you are working with cannot use it. Bear in mind that obsolete and unsupported by modern browsers, so keep your original WMV if you might need it again.
How to convert WMV to FLV
- Upload your WMV file to the converter at the top of this page - FLV is already selected as the output.
- Check the size limit shown on this page, then drag and drop or browse for your file.
- Confirm FLV is still the target format, or pick a different one from the grid.
- Start the conversion and download your FLV file the moment it is ready.
Quality tips
Keep one master WMV archived and convert copies. If the FLV file is for web playback, test it in the target browser or player; if you only need the sound, use our Extract Audio tool instead of a full video conversion.
Platform compatibility
The WMV to FLV converter runs on Windows, macOS, Linux, Android, and iOS - anywhere with a modern browser, with no plugins or permissions required. Once exported, FLV opens in VLC and legacy players only.
File size limits
Video/audio up to 2GB
Troubleshooting
- If the file exceeds the limit shown below, compress images, trim video, or split archives before retrying.
- If conversion fails, confirm the extension matches the real format — renaming a file alone does not change its contents.
- Very large videos process faster if you trim them first with our Video Trim tool.
- If quality looks soft, try a less aggressive setting when the converter offers options.
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