Aspect ratio
Definition
The width-to-height proportion of a video — 16:9 for landscape (YouTube), 9:16 for vertical (Shorts/Reels/TikTok), 1:1 for square feeds.
Aspect ratio is a video's shape: 16:9 (landscape) for YouTube, 9:16 (vertical) for Shorts, Reels and TikTok, and 1:1 (square) for social feeds.
Publishing everywhere means delivering multiple ratios. Smart tools export 16:9, 9:16 and 1:1 from one project without regenerating — the core of repurposing one idea across every platform.