Mark one rectangle. Every frame gets patched. Nothing is uploaded — the file never leaves this tab.
Load a video to build the command.
Inpainting pulls colour inward from the rectangle's border. It's convincing over sky, walls, skin and gradients; over text or hard edges it reads as a smudge — widen the edge margin first, then try blur.
Recording happens in real time — a 3-minute clip takes 3 minutes. Keep this tab visible. Output is WebM.