YUV to FLV - Online Video Converter
Convert YUV to FLV online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About YUV to FLV
Convert YUV to FLV. YUV holds raw planar pixels with no container or compression. FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. Flash-era players are gone, so convert for current browsers..
Why convert YUV to FLV?
- Smaller files with FLV lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
YUV vs FLV
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | uncompressed | lossy |
| Typical use | YUV holds raw planar pixels with no container or compression. | FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. |
When not to convert YUV to FLV
- Skip FLV for archival masters: lossy compression discards detail, so keep the YUV original.
- Keep a master copy: repeated exports stack small losses, so archive YUV before batch FLV shares.
Limits
Starting point: YUV - YUV holds raw planar pixels with no container or compression. Dimensions must be set by hand since headers carry no size. Flash-era players are gone, so convert for current browsers. Encode FLV (Sorenson Spark / MP3) from YUV at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.