Convert Shockwave Flash (.swf) to Flash Video (.flv) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .swf file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flv file when it's ready.
SWF (Shockwave Flash) is the application/animation container format from Adobe Flash, while FLV (Flash Video) is the dedicated video streaming container also from the Flash ecosystem. Despite sharing the Flash lineage, they are distinct formats: SWF is an interactive multimedia container with vector graphics, ActionScript, and optionally embedded video, while FLV is a pure video container designed for streaming. Converting SWF to FLV extracts the video/animation content from the application container into a dedicated video stream.
Both formats are technically obsolete since Flash Player's end-of-life in December 2020. However, FLV remains supported by media players like VLC and FFmpeg-based tools, while SWF has fewer playback options. Converting to FLV can be a preservation step or an intermediate step before converting to modern formats.
FLV is a simpler container than SWF, making it more broadly supported by video conversion tools and players. VLC, FFmpeg, MPlayer, and most desktop media players can play FLV files, while SWF playback requires specialized Flash emulators. Converting SWF to FLV makes the video content immediately playable in standard media players.
FLV is also useful as an intermediate format for further conversion. If your ultimate target is MP4 or WebM, converting SWF to FLV first can produce cleaner results because the FLV container provides a clean video stream that subsequent converters can process more reliably than the complex SWF application format.
The conversion engine uses FFmpeg to decode the SWF container, extract the visual and audio streams, and repackage them in an FLV container. Video is encoded using H.264 (FLV supports H.264 since FLV1/VP6 era) or Sorenson Spark for legacy compatibility. Audio is encoded as AAC or MP3 within the FLV container. Frame rate and resolution match the source SWF stage settings.
The conversion extracts video content at the source SWF's resolution and frame rate. Vector animations are rasterized during extraction. The FLV encoding quality depends on the codec settings chosen. H.264 in FLV provides good quality at reasonable bitrates. Since both formats are from the Flash ecosystem, the conversion is relatively straightforward with minimal quality loss for video-centric SWF content.
| Device | SWF | FLV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
SWF to FLV conversion moves Flash content from the complex application container to a simpler video container, enabling playback in standard media players and easier subsequent conversion.
Sikker overføring
HTTPS-krypterte opplastinger
Personvern først
Filer slettes automatisk etter behandling
Ingen registrering
Begynn å konvertere med en gang
Fungerer overalt
| No |
8MB free, 50MB Nitro
Alle nettlesere, alle enheter
| Egenskap | SWF | FLV |
|---|---|---|
| Fullt navn | Shockwave Flash | Flash Video |
| Filendelse | .swf | .flv |
| Best egnet for | Flash format | Small file size |