YouTube image sizes and dimensions
Each row states the surface, the pixel size, the aspect ratio when the platform prints one, and what kind of figure it is. A minimum, a maximum and a recommendation are different claims, so they are labelled differently rather than flattened into one column.
這是平台限制，而非正在運作的排程功能
What YouTube publishes
- Video thumbnail
- 3,840 x 2,16016:9, Recommended by the platform
Add custom thumbnails on YouTube 研究過2026年8月22日
- Channel banner
- 2,048 x 1,15216:9, Stated minimum
Manage your channel branding 研究過2026年8月22日
- Channel banner safe area
- 1,235 x 338Not stated, Area that is never cropped
Manage your channel branding 研究過2026年8月22日
- Profile picture
- 98 x 98Not stated, The size it is displayed at
Manage your channel branding 研究過2026年8月22日
- Video watermark
- 150 x 150Not stated, Stated minimum
Manage your channel branding 研究過2026年8月22日
How current this is
A platform can change a surface without announcing it. The date beside each source is the day a person last opened that page and read the numbers on it. A reading that goes stale fails a test in this repository rather than sitting here quietly.
發現此頁面有問題
Contact channels will be published here before general availability. No legal or support inbox is operating during this preview.