What size is a Reddit banner?

A Reddit profile or subreddit banner is 1920 by 384 pixels, a 5:1 aspect ratio. On mobile the sides are cropped and the avatar or community icon overlays the lower-left corner, so keep important art and text centred.

What size should a Reddit profile picture be?

A Reddit profile picture is 256 by 256 pixels and is masked to a circle. Because the corners are cut off, centre your subject and keep it inside the inscribed circle so nothing important is clipped by the round crop.

What is the subreddit icon size?

A subreddit icon is 256 by 256 pixels, square in the source file but displayed as a circle on new Reddit. Use a simple, high-contrast mark that stays legible at small sizes, since the icon often renders very small in the feed and sidebar.

What format should I use for Reddit images?

Use PNG for logos, text, and flat graphics where edges must stay crisp, and JPG for photographs. Reddit re-encodes uploads, so export from the highest-quality source and stay within the file-size cap to limit compression artefacts.

Why does my banner look cut off on mobile?

Mobile shows a narrower slice of the 5:1 banner and overlays the avatar and join button on the lower-left. If your design fills the edges, those areas get cropped or covered. Centre the focal content to survive the mobile crop.

Reddit Profile & Banner Size Tool

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Reddit masks avatars to a circle and crops banners differently on mobile, so a design built to the wrong size gets clipped or covered. This tool returns the exact pixel dimensions, aspect ratio, circular safe-crop, and export format for every Reddit profile and community asset.

How it works

Each asset has a fixed source dimension and a display rule:

Avatar / icon — 256 × 256 square source, displayed as a circle. The safe area is the inscribed circle, so corners are clipped.
Banner — 1920 × 384 (5:1). Mobile shows a narrower centre slice and overlays the avatar and join button on the lower-left.

The tool reports the source size to design to, the visible safe region, and the recommended file format for crisp rendering.

Tips and notes

Always centre the focal content of a banner: the 5:1 strip is cropped on mobile and the lower-left is covered by chrome. For avatars and icons, keep the subject inside the inscribed circle and use a high-contrast mark that stays legible when shrunk to feed size. Export PNG for graphics and text, JPG for photos. Everything runs locally in your browser.