AVI to FLV - Online Video Converter
Convert AVI to FLV online. Private, client-side - no upload required. Batch conversion, quality presets, codec control.
About AVI to FLV
Convert AVI to FLV. AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. 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 AVI to FLV?
- Smaller files with FLV lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
AVI vs FLV
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossy |
| Typical use | AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. | FLV is Adobe's Flash-video container carrying Sorenson Spark or H.264 streams. |
When not to convert AVI to FLV
- Skip FLV for archival masters: lossy compression discards detail, so keep the AVI original.
- Keep a master copy: repeated exports stack small losses, so archive AVI before batch FLV shares.
Limits
Starting point: AVI - AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. Old codecs inside may need transcoding before modern players open them. Flash-era players are gone, so convert for current browsers. Encode FLV (Sorenson Spark / MP3) from AVI 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.