LINE image and video sizes
Prepare LINE Ads and account visuals that remain legible in Japanese and regional mobile placements.
Platform guidance
LINE placements support several aspect ratios and can add interface crops. Keep text inside a protected center area and verify the current creative manual for the selected objective.
Official guidance · LINE for BusinessReviewed 2026-08-03
Working sizes
| Asset | Dimensions | Aspect ratio | Media type |
|---|---|---|---|
| Square ad | 1080 × 1080 px | 1 / 1 | Image |
| Vertical video | 1080 × 1920 px | 9 / 16 | Video |
Why these numbers matter
Marketplaces, social networks, and streaming services resize, crop, or reject media that misses their working size. Building each asset inside the published size keeps the product, title, and artwork in frame instead of being re-cropped after upload.