Image Ads
- Recommended size: 1200 × 628 px
- Formats: JPEG, PNG, GIF
- File size: under 3 MB
- Minimal text overlay for maximum engagement
Video Ads
- Format: MP4
- Max file size: 1 GB
- Duration: up to 30 seconds autoplay (15s recommended)
- Aspect ratio: 16:9 or 1:1
Carousel Ads
- Up to 6 slides (images or videos)
- Each slide: 1200 × 628 px
- Consistent branding across slides for best performance
Character Limits
- Headlines: 300 characters
- Body text: 40,000 characters
- CTA button text: 30 characters
Creative Best Practices
Reddit users engage with content that feels native to the platform. Avoid stock photography, corporate tone, and aggressive sales language. Top-performing Reddit ads look like posts a community member would write — because on Reddit, authenticity outperforms polish.
Need help with creative? Talk to our Reddit Ads team.