2026 Ad Specs Guide
Drop in an image or video to see if it fits every Meta placement, and whether your copy gets cut. It's checked in your browser and never uploaded.
The ad specs checker compares an image or video with Meta placement requirements and previews where copy may be cut. It is for ad designers and paid social teams checking a file before upload; the file stays in your browser.
Placement sizes
- Feed 1:1 1080×1080
- Feed 4:5 1080×1350
- Stories & Reels 9:16 1080×1920
Drop a file on the left to check it against every placement.
Will the copy get cut?
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- Primary text (Could be better)137 of 125 recommended characters. The rest hides behind "more", so put the hook first.
- Headline (Pass)23 of 27 recommended characters.
Who is 2026 Ad Specs Guide for?
- Never get an ad rejected for wrong specs again
- Understand which formats perform best in which placements
- Covers Feed, Stories, Reels, and Carousel formats
- Updated for 2026 platform requirements
What fits Facebook and Instagram feed ads?
- Image
- 1080x1080 (1:1) or 1080x1350 (4:5)
- Video
- up to 240 minutes, 1:1 or 4:5 recommended
- Carousel
- 1080x1080 per card, 2-10 cards
- Primary text
- 125 characters recommended
- Headline
- 27 characters recommended
What fits Stories and Reels ads?
- Image/Video
- 1080x1920 (9:16) full vertical
- Video length
- Stories up to 15s, Reels up to 90s
- Safe zone
- keep text and logos away from top 14% and bottom 20%
- Sound-on design recommended for Reels
- Text overlay
- keep under 20% of image area
What should I know about file requirements?
- Image formats
- JPG or PNG
- Video formats
- MP4 or MOV (H.264)
- Max file size
- 30MB images, 4GB video
- Min resolution
- 600x600 pixels
- Max aspect ratio
- 9:16 to 16:9 range
What does the ad specs checker check?
The ad specs checker checks file dimensions, aspect ratio, format and size against its built-in placement rules. It also previews copy truncation.
Does the ad specs checker upload my file?
The ad specs checker reads the file locally in your browser. Your file is never uploaded.
Does a passing check guarantee Meta approval?
A passing specs check only means the file fits the checked technical rules. Review the creative and current placement requirements in Meta before publishing.
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