Aspect ratio
The width-to-height ratio of a video frame.
Three aspect ratios dominate: 16:9 (horizontal long-form), 9:16 (vertical short-form), and 1:1 (square, mostly legacy).
Each platform favors a specific ratio. Cross-posting requires reformatting, not just re-uploading.
Choosing the wrong aspect ratio for a platform meaningfully depresses both CTR and retention.
Why it matters
Treat aspect ratio as a platform-specific decision, not a global default.
How to improve it
- 01Shoot in the highest-resolution native ratio.
- 02Reformat per platform before upload.
- 03Avoid letterboxed cross-posts.
Apply it
See your own aspect ratio in seconds.
Paste any YouTube, Shorts or TikTok link and our analyzer will surface the metric, the curve, and the move that lifts it next.