Convert FLV video to WebM in a browser-only batch. Files, streams, metadata, and results are never uploaded.
Files stay in this browser tab and are never uploaded. Up to 250.0 MiB per file and 10 files.
Lower CRF values preserve more detail and usually create larger files.
The private batch workspace is ready. Video encoding becomes available after the verified browser engine is loaded.
FLV probe and decode → stream-aware conversion → WebM verify
FLV input is parsed for supported Flash video codecs, audio tracks, timestamps, and bounded script metadata.
WebM output uses VP9 video and Opus audio with only verified WebM-compatible streams.