Reddit Ad Creative Specs

Advertise on Reddit. Reach influential communities talking about today’s most relevant content.

CREATIVE SPECS
Images
  • Card image: 1200px x 628px (optional), 3MB max file size.

  • Thumbnail image: 400px x 300px or aspect ratio of 4:3.

  • 500 kb max file size (optional).

Videos
  • Dimensions: Recommended: 1:1 Square; 4:5 Vertical;

  • 4:3 Classic; 16:9 Full Landscape.

  • Autoplay if native, click to play if third party video.

  • File type: MP4, MOV

  • Video file size: 1 GB max.

  • Length: 0:05 – 0:30 recommended.

Text
  • Headline/Post title: 300 character max

  • Post copy: 40,000 character max (optional)

DO’S AND DONTS
Do’s
  • Square & SemiVertical work best’ (1080×1350)

  • Use long copies: Audience looking for content.

GET IN TOUCH
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