Using the correct image dimensions prevents automatic cropping and compression by the platform.
Correct dimensions
| Format | Dimensions | Notes |
|---|---|---|
| Thumbnail | 1280 × 720 px | 16:9 ratio — minimum 640×360px |
| Max file size | 2 MB | JPG, PNG or WebP |
| Channel art | 2560 × 1440 px | Safe area: 1546×423px center |
| Profile photo | 800 × 800 px | Displayed as circle |
| End screen | 1280 × 720 px | Use video frame or custom image |
YouTube thumbnails are the #1 factor in click-through rate. A sharp, correctly sized thumbnail at 1280×720px looks great on all devices from phones to 4K TVs.
Tips
- Always use the highest resolution original — you can always resize down, never up without quality loss
- Save as JPG for photos, PNG for graphics with transparency or text
- Use Fourmeld Image Tools to resize to any exact dimension free
FAQs
What happens if I use the wrong size?
The platform auto-crops or compresses your image, often losing quality or cutting off important content.
Should I resize before or after editing?
Edit first, then resize to the target dimensions as the last step.
What format is best?
JPG at 85-90% quality is best for photos. PNG is best for graphics, logos and images with text.
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