What size is a Snapchat thumbnail?

Most Snapchat thumbnails and covers — Spotlight covers, Public Profile covers, and Snap ad previews — are 1080 by 1920 pixels at a 9:16 vertical ratio. The Discover Story Ad tile is the exception at 993 by 284 pixels.

What size is a Discover Story Ad tile?

The branded tile shown in the Discover feed is 993 by 284 pixels, a wide 3.5:1 landscape format. Centre your logo and headline and avoid placing text at the edges, which can be trimmed.

What format should Snapchat thumbnails use?

Export thumbnails and covers as JPG or PNG. PNG preserves crisp logos and text without compression artefacts, while JPG keeps photographic covers smaller. Either is accepted across the content types.

Where do Snapchat UI overlays cover my thumbnail?

On vertical 9:16 covers, the top roughly 150 pixels hold the profile chip and bars and the bottom roughly 310 pixels hold the caption. Keep your key text and subject in the middle third so the UI does not hide it.

Does this tool process my image?

No. It is a dimensions reference, not an editor. It tells you the exact target size, ratio, and format; you export from your own tool at the figures shown. Nothing is uploaded or stored.

Snapchat Thumbnail Size Tool

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A blurry or wrongly-cropped thumbnail kills your tap-through on Snapchat, where covers and tiles compete for attention in a fast vertical scroll. This tool gives you the exact pixel size, verified aspect ratio, and format for each Snapchat content type, plus the safe-zone rule so your subject stays clear of the interface.

How it works

Each content type carries Snapchat’s recommended dimensions. The tool also verifies the aspect ratio by reducing the width and height by their greatest common divisor, and reports the total resolution in megapixels.

verified ratio = width : height reduced by gcd(width, height)
resolution     = width × height ÷ 1,000,000  (megapixels)

spotlight / profile / ad preview = 1080 × 1920  (9:16 vertical)
discover story ad tile           = 993 × 284   (≈ 3.5:1 landscape)

Showing the reduced ratio confirms at a glance that 1080 by 1920 really is 9:16 and that the wide Discover tile is a different shape entirely.

Tips and notes

Always export at the native size rather than upscaling a smaller crop — Snapchat’s vertical covers are large and a low-resolution upload looks soft next to native creative. For 9:16 covers, keep your headline and subject in the middle third so the top profile chip and bottom caption do not hide them. The Discover Story Ad tile is wide and short, so design it like a landscape banner with centred branding, and verify clearance with the Snapchat Safe Zone Guide.