Select your source video with the browse button, or drag the file onto the drop area.
Review the options dialog, where FLV is the target format; you can optionally choose a resolution or check mute or compress.
Click Convert to launch the encoding.
Follow the progress percentage displayed over the preview of your clip.
Once processing completes, the FLV file downloads on its own.
FLV, short for Flash Video, was the backbone of online video in the 2000s, and although Flash itself has been retired, the format has not disappeared. Some older streaming servers, archival systems, and content-management platforms still expect FLV files, and media libraries built over many years often standardized on the format long ago.
This tool exists for exactly those cases: keeping a legacy video archive consistent, feeding an older RTMP-based streaming setup, or matching the format requirements of an in-house system that was never updated. Pick a modern MP4 or MOV file, convert it to FLV in your browser, and slot it into the existing workflow without touching a server.
100% private“Your footage is processed entirely within the browser tab you have open. FFmpeg runs locally as WebAssembly, meaning the video is never sent anywhere, and closing the tab removes everything.”
Yes, though mainly in legacy contexts. Some older streaming servers, archived media collections, and internal corporate systems were built around FLV and still require it, which is why a converter remains useful.
Not directly. Browsers dropped Flash support, so you will need a desktop player such as VLC or a system that specifically handles FLV. If you want a video for the modern web, MP4 or WebM is a better target.
The video is re-encoded during conversion, so some generational quality loss is normal, as with any format change. For typical clips the difference is minor, but keeping your original file is always a good idea.