YouTube
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YouTube rewards instant clarity. Thumbnails at 1280×720 should read at a glance; keep faces and words bold. Banners are responsive—put essentials in the center safe area. Shorts are 9:16; leave space for UI. Export crisp JPG/PNG and MP4 (H.264/AAC).
Best Practices
- Thumbnails: 1280×720 with strong contrast and minimal text.
- Center the focal point for TV and mobile viewing.
- Use channel banner safe area for taglines/logos.
- Shorts: 9:16; protect bottom area from UI overlays.
- Export MP4 (H.264/AAC); crisp JPEG/PNG for thumbs.
Pro Tips
- Design at 100%, test at ~10% zoom to simulate small sizes.
- Limit thumbnail text to 2–4 words.
- A/B test variants to improve CTR.
- Use consistent layouts/colors for brand recognition.
- Avoid busy backgrounds behind faces/headlines.
Visual Previews
Thumbnail
16:9 · Image
1280 x 720 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Channel Banner
16:9 · Image
508px
509px
507px
507px
2560 x 1440 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Shorts
9:16 · Video
220px
220px
100px
1080 x 1920 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Sizes
Thumbnail
- Dimensions:
- 1280 x 720 px
- Aspect Ratio:
- 16:9
- Format:
- Image
Channel Banner
- Dimensions:
- 2560 x 1440 px
- Aspect Ratio:
- 16:9
- Format:
- Image
Shorts
- Dimensions:
- 1080 x 1920 px
- Aspect Ratio:
- 9:16
- Format:
- Video
| Type | Dimensions | Aspect Ratio | Format |
|---|---|---|---|
| Thumbnail | 1280 x 720 px | 16:9 | Image |
| Channel Banner | 2560 x 1440 px | 16:9 | Image |
| Shorts | 1080 x 1920 px | 9:16 | Video |
FAQ
What size should YouTube thumbnails be?
1280×720 px at 16:9, under 2 MB. Use JPG, PNG, or GIF and keep text minimal and high-contrast so it reads at smaller player sizes.
How do I avoid YouTube banner cropping?
The banner is 2560×1440, but only the center 1546×423 safe area appears on every device. Keep logos, taglines, and faces inside that box.
What’s the ideal YouTube Shorts format?
Vertical 9:16 at 1080×1920. Leave ~220px at top and bottom clear so the title, handle, captions, and action buttons don't cover your subject.
What bitrate should I upload at?
For 1080p, YouTube recommends 8 Mbps for SDR video and 10 Mbps for 4K; use H.264 video with AAC audio in an MP4 container.
Can I change a YouTube thumbnail after publishing?
Yes — you can swap thumbnails at any time from YouTube Studio. Many creators A/B test variants to improve click-through.
What's the maximum file size for a YouTube thumbnail?
2 MB. Keep exports lean; a 1280×720 JPG rarely needs to exceed 500 KB for crisp quality.