YouTube Thumbnail & Image Sizes

YouTube recommends custom thumbnails as large as possible, currently 3840x2160 at 16:9, with a minimum width of 640 pixels. FastEdit uses 1280x720 as a practical 16:9 preset. Accepted formats include JPG, GIF, and PNG. File limits depend on upload device: 2 MB on mobile for video thumbnails and 50 MB on desktop.

Here's how: Open your image in FastEdit, select the YouTube Thumbnail preset to resize it to 1280x720, adjust the crop if needed, and export as JPEG. Upload it when publishing your video or edit the video details in YouTube Studio.

YouTube channel art is 2560x1440 pixels, but the safe area visible on all devices is only the center 1546x423 pixels. On desktop, 2560x423 is visible. On TV, the full 2560x1440 is displayed. Design from the center outward.

YouTube recommends 800x800 pixels for profile photos. The image is displayed as a circle and appears at various sizes across the platform: as small as 32px in comments and up to 800px on the channel page.

Yes. YouTube compresses thumbnails on upload. To minimize quality loss, use a clean 16:9 source, preferably larger when available. 1280x720 is a practical preset; 3840x2160 gives YouTube more source detail. Keep files within the applicable upload limit for your device.

YouTube recommends MP4 with H.264 video codec and AAC audio. For maximum quality, upload at the highest resolution available (up to 8K). YouTube re-encodes all uploads, so higher quality source files produce better results.