Current sizes, ratios, durations, file limits, and text limits for X placements. Specs change several times a year; confirm against the platform's documentation before production.
| Element | Specification |
|---|---|
| Image | 1200 x 1200 (1:1) or 1200 x 628 (1.91:1); JPG or PNG; 5 MB |
| Video | 1:1 or 16:9 (9:16 for vertical feed); MP4 or MOV; up to 2 minutes 20 seconds (15 seconds recommended); 1 GB |
| Text | Post 280 characters (URLs count as 23); headline 70; website card description 50 |
| Carousel | 2 to 6 images or videos, 1:1 or 1.91:1 |
Platform profile: X Ads. Official documentation: https://business.x.com/en/help.html.
Build client-approval mockups at these dimensions with the free ad mockup generator. Terms are defined in the creative section of the glossary.
Cite this page:
Agency Echelon. "X ad specs." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/specs/x/