speed-ramp-video

Speed Ramp Video — Create Speed Ramp and Slow Motion Video Effects with AI. Upload any video and describe where to apply speed changes: "slow down the jump to half speed" or "speed ramp from normal to 0.25x when the ball hits." The AI handles frame interpolation for smooth slow motion even on standard 30fps footage, time remapping with ease-in and ease-out curves, speed ramping between fast and slow segments, and reverse playback effects. Create cinematic slow motion highlights from sports footage, dramatic reveals in product videos, satisfying slow-mo food clips, and action replays. Combine speed changes with music sync — "slow down on the beat drop" — for music video style edits. Adjust playback speed from 0.1x ultra-slow to 8x fast forward. No keyframing or timeline needed — describe the timing in words and get the result as MP4. Supports mp4, mov, avi, webm, mkv.