Keep the main subject centered
Avoid placing faces, product details, or key text too close to the edges. Interface elements and cropping can reduce visible space.
Dokuntag Publish
Instagram Reels Thumbnail Size and Cover Preparation
A Reels thumbnail has to work in more than one place: the Reel viewer, profile grid, feed previews, and recommendation surfaces.
Use short cover text
If you use text, make it short enough to read on mobile. A thumbnail should explain the topic quickly, not carry the full caption.
Check profile-grid readability
A cover can look good in the Reels viewer but fail in the profile grid. Preview the thumbnail at small size before publishing.
Related preparation pages
Next step
Use the related tool or workspace before publishing.
This is a general publishing-preparation reference. Platform rules can change, so verify current official guidance before publishing.