Quick Answer (Save This)
If you're turning a photo into a TikTok video (or a slideshow), the safest defaults are:
- Aspect ratio: 9:16 (vertical)
- Resolution: 1080×1920
- Length: Aim for under ~30 seconds unless you have a clear story arc
- Hook rule: The first frame (or first slide) must make people stop scrolling
- Posting times: Start with weekday evenings, then refine using your analytics
For the full workflow, see our main guide: Image to Video AI.