Optimize MP4 + LQIP

Re-encode an MP4 for the web (H.264 + faststart), and generate a tiny LQIP WebM placeholder. Runs ffmpeg.wasm in your browser.

Drag a video file (MP4 / MOV / WebM)

Or click to browse. Files stay in your browser.

Optimized MP4

Max width (px)

CRF

18 sharp · 23 sweet · 28 light

Keep audio

@kbps AAC

LQIP WebM placeholder

Max width (px)

CRF (VP9)

35 nicer · 45 tinier

FPS

The placeholder is a tiny silent video meant to start playing the instant the page loads (like a blur-up image preview). Smaller is better — target < 100 KB.