Convert to WebM
WebM is an open container designed for HTML5 video; VP9 achieves smaller sizes than H.264 at equal quality and is natively supported by modern browsers. This group transcodes GIF, MP4 and MKV to WebM โ 3 conversion directions.
Output uses VP9 CRF constant-quality mode, with the quality parameter balancing fidelity against size. Suited for embedded website video and animation-to-video conversion; older Safari versions and some TVs are unsupported.
GIFโWebM
Encodes GIF animation to WebM (VP9), cutting size by about 85% for muted looping animation in modern browsers.
MP4โWebM
Transcodes MP4 to WebM (VP9 with constant-quality CRF) as a royalty-free, smaller alternative source for web video.
MKVโWebM
Re-encodes MKV as VP9 + Opus WebM (constant-quality CRF) for royalty-free HTML5 video delivery.