Aspect Ratio Converter With Smart Reframing

Every platform demands a different aspect ratio. YouTube wants 16:9, TikTok and Reels want 9:16, Instagram wants 1:1 or 4:5, cinema and ultra-wide trailers want 21:9. Cutting once and delivering to every platform means converting the same source clip across multiple aspects — and doing it in a way that keeps the action visible, not letterboxed into the corner of an empty frame. Skrrol AI's aspect ratio converter handles the conversion and the reframe together. Pick the source aspect, pick the target, and the editor offers three reframing strategies: letterbox (preserve everything, add black bars), center crop (lose edges, keep center), and AI subject track (follow the person or product so the subject stays centered through the whole clip).

Subject-tracked reframing is the headline. A horizontal interview where the speaker walks across the frame becomes a vertical TikTok where the speaker stays in shot the whole time. A square cooking demo where the chef's hands move across the counter becomes a 9:16 reel with the hands always in frame. The same on-device AI model that powers Smart Cutout drives the tracker, so the reframe stays smooth and the subject doesn't jitter. For static shots where reframing isn't needed, center crop or a fixed offset position handles the conversion in seconds. Output writes at the new aspect's native resolution — 1080x1920 for vertical, 1080x1080 for square — with the right platform metadata baked into the file.