Reddit · Video ad
Last verified 3 Nov 2026
Check a file against this →Key facts
- Recommended size
- 1920 × 1080
BOfficial recommendation. Evidence details
- Source
- Video Ad Specifications (Reddit Ads Help)
- How verified
- Read directly
- Verified
- 3 Nov 2026
Video Ad Specifications: cross-device, Landscape 4:3 1440 x 1080 or 16:9 1920 x 1080; mobile also 1:1 1200 x 1200, 3:4 900 x 1200, 4:5 1200 x 1500.
Open source ↗- Aspect ratio
- 16:9
BOfficial recommendation. Evidence details
- Source
- Video Ad Specifications (Reddit Ads Help)
- How verified
- Read directly
- Verified
- 3 Nov 2026
Video Ad Specifications: cross-device, Landscape 4:3 1440 x 1080 or 16:9 1920 x 1080; mobile also 1:1 1200 x 1200, 3:4 900 x 1200, 4:5 1200 x 1500.
Open source ↗- Duration
- 2–900 s (15 min)
AOfficial requirement. Evidence details
- Source
- Video Ad Specifications (Reddit Ads Help)
- How verified
- Read directly
- Verified
- 3 Nov 2026
Video Ad Specifications: length 2 seconds to 15 minutes.
Open source ↗- Max file size · Video
- ≤ 1 GB
AOfficial requirement. Evidence details
- Source
- Video Ad Specifications (Reddit Ads Help)
- How verified
- Read directly
- Verified
- 3 Nov 2026
Video Ad Specifications: maximum file size 1 GB.
Open source ↗
All requirements
| Property | Rule | Evidence |
|---|---|---|
| File format · Video | mp4, mov | AOfficial requirement. Evidence details
Video Ad Specifications: file type MP4 or MOV (ProRes not supported). Open source ↗ |
| File size · Video | ≤ 1 GB | AOfficial requirement. Evidence details
Video Ad Specifications: maximum file size 1 GB. Open source ↗ |
| Duration · Video | 2–900 s (15 min) | AOfficial requirement. Evidence details
Video Ad Specifications: length 2 seconds to 15 minutes. Open source ↗ |
| Duration · Video | 5–30 s | BOfficial recommendation. Evidence details
Video Ad Specifications: recommended 5-30 seconds. Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Video codec | Not allowed: prores | AOfficial requirement. Evidence details
Video Ad Specifications: ProRes not supported; Ad Unit Specifications: ProRes isn't currently supported. Open source ↗ |
| Frame rate | ≤ 30 fps | AOfficial requirement. Evidence details
Video Ad Specifications: maximum frame rate 30 FPS. Open source ↗ |
| Video aspect ratio | 1:1, 3:4, 4:5, 4:3, 16:9 | BOfficial recommendation. Evidence details
Video Ad Specifications: any aspect ratio can be used, but 1:1, 3:4, 4:5, 4:3 and 16:9 are the suggested ratios; others may cause formatting discrepancies such as letterboxing. Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Headline length | ≤ 300 characters | AOfficial requirement. Evidence details
Headline: maximum 300 characters (required). Open source ↗ |
| Headline length | ≤ 100 characters | BOfficial recommendation. Evidence details
Headline: recommended 100 characters or fewer (80 if truncation is a concern); text may be truncated by browser, device and font size. Open source ↗ |
Loudness
No official loudness target. About loudness standards
Notes and caveats
- Video ads in Reddit's feeds and conversation pages; autoplay in the feed (users can opt out). Recommended sizes: 1:1 1200 x 1200, 3:4 900 x 1200, 4:5 1200 x 1500, 4:3 1440 x 1080, 16:9 1920 x 1080. Thumbnail JPG, PNG or GIF, 3 MB, matching the video's ratio. Destination URL 268 characters, display URL 100. Reddit publishes no safe zones.
Sources
- Video Ad Specifications (Reddit Ads Help) · Reddit Inc.Read directly · 3 Nov 2026
- Ad Unit Specifications (Reddit Ads Help) · Reddit Inc.Read directly · 3 Nov 2026
Version history
- 3 Nov 2026 · 0.2.9Added from Reddit's Ads Help ad unit specifications, read directly on 3 Nov 2026 (decision D43).