Reddit Ads — Free-form Ad (Rich Text Post)

Other · Social · Verified 2026-06

Live preview

1200×1200

shown at 38%

In context

Sample feed post

Full specification

Size (px)

Ratio1:1 (embedded media; varies)

Max weight10 MB per image; 1 GB per video

FormatsJPG, PNG, GIF

Max duration5-30 seconds recommended

Max video1 GB per video (50-100 MB recommended)

Formats · VideoMP4, MOV

Text limits

Headline 300 chars

Body 40000 chars

Caption 50 chars

Notes & best practice

This rich-text ad unit features a headline and a long-form rich body.

Tapping the ad opens the full post.

It supports up to 20 images (JPG, PNG, or GIF, max 10 MB each) and up to 5 videos (MP4 or MOV, max 1 GB each).

Free-form ads do not auto-generate a thumbnail.

You must upload a JPG or PNG up to 3 MB, with 400x300 or 300x300 recommended.

Build free-form ads in Ads Manager instead of promoting an existing post to ensure thumbnails render correctly.

Official doc All Reddit Ads sizes Compare “Other” across platforms

Frequently asked questions

What size is the Reddit Ads Free-form Ad (Rich Text Post)?

The Reddit Ads Free-form Ad (Rich Text Post) is 1200×1200 px, aspect ratio 1:1 (embedded media; varies).

What is the aspect ratio of the Reddit Ads Free-form Ad (Rich Text Post)?

1:1 (embedded media; varies). At the recommended resolution that is 1200×1200 px.

What is the maximum file size for the Reddit Ads Free-form Ad (Rich Text Post)?

Up to 10 MB per image; 1 GB per video, in JPG, PNG, GIF.

What file formats does Reddit Ads accept for the Free-form Ad (Rich Text Post)?

JPG, PNG, GIF.

How long can the Reddit Ads Free-form Ad (Rich Text Post) be?

5-30 seconds recommended.

Why does Reddit Ads crop my Free-form Ad (Rich Text Post)?

Reddit Ads shows Free-form Ad (Rich Text Post) at 1:1 (embedded media; varies). Upload exactly 1200×1200 px and keep key content in the safe area so nothing gets cut off.

Is 1200×1200 still correct for the Reddit Ads Free-form Ad (Rich Text Post) in 2026?

Yes. Last verified 2026-06 against the official Reddit Ads documentation.

Check your creative

Test a file against this exact spec before you upload it anywhere.

Nothing is uploaded or saved — the check runs entirely in your browser.

Drag & drop your creative or click to choose a file