Updated 2/27/2026
Feed
Feed Image Ad
Single image ads that appear in Facebook and Instagram feeds
FeedDimensions
File Specifications
Image
Design recommendation: 1080 x 1080 pixels for square format
Text Limits
| Field | Max Length | Recommended |
|---|---|---|
| Primary Text | 125 characters | 125 characters |
| Headline | 40 characters | 40 characters |
| Description | 30 characters | 30 characters |
Best Practices
design
Use high-resolution images (at least 1080 x 1080 pixels)
Keep important content in the center of the image
Avoid text overlay covering more than 20% of the image
Impact: May reduce reach and delivery
content
Test multiple aspect ratios (1:1, 4:5, 1.91:1) to see what performs best
Front-load important messaging in the first 125 characters
technical
Use JPG format for photos and PNG for graphics with transparency
performance
Images with faces tend to perform better in feed placements
Feed Video Ad
Single video ads that appear in Facebook and Instagram feeds
FeedDimensions
File Specifications
Video
Recommended: Less than 15 seconds for in-feed placement
Text Limits
| Field | Max Length | Recommended |
|---|---|---|
| Primary Text | 125 characters | 125 characters |
| Headline | 40 characters | 27 characters |
| Description | 30 characters | 27 characters |
Best Practices
design
Capture attention in the first 3 seconds
Impact: Critical for engagement
Design videos to work without sound (use captions)
content
Keep videos under 15 seconds for best performance in feed
Use square (1:1) or vertical (4:5) formats to maximize screen space on mobile
technical
Use H.264 compression with square pixels
Include captions for accessibility and sound-off viewing
performance
Motion and visual variety in the first few seconds increases watch time
Feed Image Ad
Single image ads that appear in Facebook and Instagram feeds
FeedDimensions
File Specifications
Image
Design recommendation: 1080 x 1080 pixels for square format
Text Limits
| Field | Max Length | Recommended |
|---|---|---|
| Primary Text | 125 characters | 125 characters |
| Headline | 40 characters | 40 characters |
| Description | 30 characters | 30 characters |
Best Practices
design
Use high-resolution images (at least 1080 x 1080 pixels)
Avoid text overlay covering more than 20% of the image
Impact: May reduce reach and delivery
content
Front-load important messaging in the first 125 characters
Feed Video Ad
Single video ads that appear in Facebook and Instagram feeds
FeedDimensions
File Specifications
Video
Recommended: Less than 15 seconds for in-feed placement
Text Limits
| Field | Max Length | Recommended |
|---|---|---|
| Primary Text | 125 characters | 125 characters |
| Headline | 40 characters | 27 characters |
| Description | 30 characters | 27 characters |
Best Practices
design
Capture attention in the first 3 seconds
Impact: Critical for engagement
Design videos to work without sound (use captions)
content
Keep videos under 15 seconds for best performance in feed
Reels
Reels Ad
Full-screen vertical video ads in Facebook and Instagram Reels
ReelsDimensions
File Specifications
Video
Recommended: 15-60 seconds for optimal engagement
Text Limits
| Field | Max Length | Recommended |
|---|---|---|
| Primary Text | 125 characters | — |
Best Practices
design
Use full-screen 9:16 vertical format
Design for sound-off viewing with captions
content
Create authentic, entertaining content