Reddit ad specs

Reddit supports 3 documented ad formats across the Community category. Browse the full list of placements, dimensions, file size limits, and creative requirements for advertising on Reddit. Promoted Posts and Conversation Ads in subreddit feeds and conversation pages.

Frequently asked questions

What is Reddit?
Reddit is a Community platform that supports 3 documented ad formats on All Ad Specs.
How many ad formats does Reddit support?
Reddit currently has 3 documented ad formats in this directory, each with full dimensions, file size limits, and codec requirements.
What kind of platform is Reddit?
Reddit is part of the Community category. See the format list above for placements where ads can run.
How does Reddit compare to other publishers in this directory?
Each publisher has its own catalog of ad formats with different dimensions, file size limits, and creative rules. Compare Reddit's 3 formats against any other publisher in the All Ad Specs directory by browsing their respective pages.
Where can I find Reddit's official ad spec documentation?
Each format on this page links out to Reddit's official source. You can also visit https://business.reddithelp.com/s/article/Ad-formats-and-specs for general information.
Are Reddit ad specs kept up to date?
Yes — every format page references the original publisher source so the dimensions, file size limits, and codec requirements stay in sync.