FLV to RMVB - Online Video Converter
Convert FLV to RMVB online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About FLV to RMVB
Convert FLV to RMVB. FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. RMVB adds variable bitrate to the RealMedia container for smaller downloads. Variable-bitrate seeking can drift; verify sync after conversion..
Why convert FLV to RMVB?
- Smaller files with RMVB lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
FLV vs RMVB
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossy |
| Typical use | FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. | RMVB adds variable bitrate to the RealMedia container for smaller downloads. |
When not to convert FLV to RMVB
- Skip RMVB for archival masters: lossy compression discards detail, so keep the FLV original.
- Keep a master copy: repeated exports stack small losses, so archive FLV before batch RMVB shares.
Limits
Starting point: FLV - FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. Flash-era players are gone, so convert for current browsers. Variable-bitrate seeking can drift; verify sync after conversion. Encode RMVB (RV10 / AC-3) from FLV 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.