X (Twitter) Ads ad specs

Promoted post

Sizes

Aspect ratio	Recommended	Minimum
16:9 widescreen	1200 × 675 px	600 × 338 px
1:1 square	1200 × 1200 px	600 × 600 px

Images: Up to 5 MBapprox.JPG, PNG, GIF
Video: Up to 1 GBapprox.MP4, MOV · up to 140 s long
Copy limits: Post text: 280 charactersapprox.
Headline: 70 charactersapprox.
Source: X (Twitter) Ads spec page (opens in a new tab)

Video ad

Promoted video in the timeline

Sizes

Aspect ratio	Recommended	Minimum
16:9 widescreen	1200 × 675 px	600 × 338 px
1:1 square	1200 × 1200 px	600 × 600 px
9:16 full vertical	1080 × 1920 px	540 × 960 px

Video: Up to 1 GBapprox.MP4, MOV · up to 140 s long
Copy limits: Post text: 280 charactersapprox.
Headline: 70 charactersapprox.
Source: X (Twitter) Ads spec page (opens in a new tab)

Carousel

2–6 swipeable cards

Sizes

Aspect ratio	Recommended	Minimum
1.91:1 landscape	800 × 418 px	400 × 209 px
1:1 square	1200 × 1200 px	600 × 600 px

2–6 cards per ad.

Images: Up to 5 MB eachapprox.JPG, PNG, GIF
Copy limits: Post text: 280 charactersapprox.
Headline: 70 charactersapprox.
Source: X (Twitter) Ads spec page (opens in a new tab)

Specs current as of 2026 and subject to change by the platforms — confirm against official docs before final creative export. Figures marked approx. could not be re-checked against the platform's current docs; treat them as a guide.