Prepare YouTube thumbnail images with browser-local 16:9 resizing presets for videos, Shorts covers and channel workflows.
| Placement | Dimensions | Note |
|---|---|---|
| Thumbnail 3840x2160 | 3840 x 2160 | Current YouTube Studio recommended thumbnail size. |
| Thumbnail 2560x1440 | 2560 x 1440 | High-resolution 16:9 thumbnail canvas. |
| Thumbnail 1920x1080 | 1920 x 1080 | Full HD 16:9 thumbnail canvas. |
| Thumbnail 1280x720 | 1280 x 720 | Common older 16:9 thumbnail workflow size. |
Checked: 2026-09-04
This page focuses on 16:9 YouTube thumbnail canvases, with 3840 x 2160 as the current high-resolution recommendation and smaller 16:9 presets for common workflows.
The output is created locally before upload; YouTube may still crop, recompress or preview the thumbnail differently.
No. ImgShrink processes selected images in your browser and does not upload them to a server.
The default resize workflow fits the image into the selected dimensions. Empty space may be filled when an exact canvas is needed.
No. Social platforms can change recommendations, so check the final upload preview before publishing an important campaign.
Preset dimensions are maintained as practical platform references and should be rechecked before high-stakes publishing.
Last checked: 2026-09-04
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