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YouTube Image Sizes

YouTube uses three primary image surfaces: video thumbnails, the channel banner, and the profile picture. Each has tight specs because YouTube re-displays them across phones, TVs, tablets, and embedded players where bad sizing breaks visibly.

YouTube image strategy

Thumbnails are 1280×720 (16:9), capped at 2MB. Larger files get rejected outright. The thumbnail is the single biggest CTR lever on YouTube — high contrast, large faces, and minimal text (3-5 words max) consistently outperform busy designs. Test variants on the same video using YouTube's built-in A/B testing. The channel banner is 2560×1440 (16:9) but appears differently on every device. The "TV-safe area" is the centre 1546×423 — anything outside that gets cropped on desktop, mobile, or TV depending on the device. Treat the centre band as the only reliably visible area; treat the rest as decorative. Profile pictures appear as 800×800 source but render at 98×98 in headers and 24×24 in inline mentions. Simple, high-contrast designs survive the downscale. Avoid fine detail, tagline text, or multi-element compositions — none of those read at 24×24. YouTube re-encodes thumbnails for different surfaces (search results, suggested videos, embeds). The re-encode is noticeably more aggressive than Instagram or Facebook, so start with a sharp, high-contrast source — fuzzy or low-contrast sources degrade visibly after re-encode. For end-card and watermark overlays inside videos, YouTube recommends 800×800 PNG with transparency. The watermark scales down to about 150×150 in the bottom-right corner of every video.

Quick reference

AssetDimensionsRatio
Thumbnail1280×72016:9Open
Banner2560×144016:9Open
Profile800×8001:1Open

YouTube sizing FAQ

What size should a YouTube thumbnail be?

YouTube thumbnails should be 1280×720 pixels (16:9), under 2MB, in JPG, GIF, or PNG. Anything outside these specs gets rejected at upload. Always design at 1280×720 — designing larger and downscaling can lose detail you wanted YouTube to see.

What is the YouTube banner size?

YouTube channel banners are 2560×1440 pixels (16:9). The TV-safe area is the centre 1546×423 — keep all important content within that band. The rest of the banner gets cropped differently across desktop, mobile, and TV.

What size is a YouTube channel profile picture?

Upload at 800×800 pixels minimum. The picture displays as a circle at sizes from 98×98 (header) down to 24×24 (inline mentions). Design for legibility at the smallest size.

Why does my YouTube thumbnail look pixelated?

Either your source was under 1280×720, or YouTube re-encoded a low-contrast or noisy source. Always design at exactly 1280×720, use high contrast, and avoid noise or grain in the source image.

Are PNG thumbnails better than JPEG on YouTube?

PNG preserves text sharpness but produces larger files. JPEG at 90% quality is usually within YouTube's 2MB limit and survives the re-encode equally well for typical thumbnail content (faces, gradients, large text). Use PNG only when you have sharp text or a logo over a flat colour.