Reddit Carousel Card ad specs

Reddit Carousel Card ads are horizontal 1.91:1 still images, measured at 1200×628 px, up to 20 MB per file, delivered as JPG or PNG. They run in the Feed placement on Reddit. Use these requirements to brief designers, validate uploads, and avoid creative rejections in Reddit's ad manager.

Visual specifications

Dimensions1200 × 628 px
Aspect ratios1.91:1, 1:1
Orientationlandscape
Max file size20 MB
File typesJPG, PNG

Copy limits

Headline300 chars
Primary text80 chars

Notes & source

2–6 cards per carousel; each card has its own destination URL.

Official source: https://business.reddithelp.com/s/article/Ad-formats-and-specs

Frequently asked questions

What size are Reddit Carousel Card ads?
Reddit Carousel Card ads are 1200×628 pixels with an aspect ratio of 1.91:1.
What aspect ratio does Reddit Carousel Card use?
Reddit Carousel Card supports 1.91:1 and 1:1 aspect ratios.
What is the maximum file size for Reddit Carousel Card?
Files for Reddit Carousel Card can be up to 20 MB.
Which file formats does Reddit Carousel Card accept?
Reddit Carousel Card accepts JPG and PNG files.
What are the copy limits for Reddit Carousel Card?
Reddit Carousel Card copy is limited to 300-character headlines and 80-character body text.
Where does Reddit Carousel Card appear on Reddit?
Reddit Carousel Card ads appear in the Feed placement on Reddit.
Where can I find the official Reddit Carousel Card documentation?
The official source for Reddit Carousel Card requirements is https://business.reddithelp.com/s/article/Ad-formats-and-specs, linked from this page.
Are these Reddit Carousel Card specs kept up to date?
Yes — every spec entry references Reddit's official documentation source so dimensions, file size limits, and codec requirements stay in sync as the platform changes.