FLV to MPV - Online Video Converter
Convert FLV to MPV online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About FLV to MPV
Convert FLV to MPV. FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. MPV holds elementary MPEG video streams without a container wrapper. No audio can be stored, so pair it with a separate track..
Why convert FLV to MPV?
- Smaller files with MPV lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
FLV vs MPV
| 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. | MPV holds elementary MPEG video streams without a container wrapper. |
When not to convert FLV to MPV
- Skip MPV 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 MPV 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. No audio can be stored, so pair it with a separate track. Encode MPV (MPEG-2 / AAC) 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.