- Facebook carousel ads support 2 to 10 cards, each with its own image, copy, and destination URL.
- Use 1080 × 1080 px JPG or PNG images (max 30 MB) for clean rendering across all placements.
- Customize the headline and link for every card — repeating copy across cards kills engagement.
- Sequence cards intentionally: hook on card one, value in the middle, CTA at the end.
- Visual consistency across all cards keeps the ad cohesive and on-brand.
- Coinis Image Ads and Brand Profile generate on-brand carousel creatives without starting from scratch.
What Is a Facebook Carousel Ad?
A carousel ad shows multiple cards in a single ad unit. Users swipe left to reveal each one. It is one of Meta's most versatile paid formats.
Multi-card format with interactive swiping
Each card stands alone. It has its own image or video, headline, description, and destination URL. The swipe mechanic invites interaction. More interaction means more time spent with your brand before the decision moment.
Use cases: product showcase, storytelling, feature highlights
Carousel ads fit several strategies well. Show multiple products in one ad. Walk through a how-to sequence. Highlight different features of a single product. Display a before-and-after transformation. The format is flexible enough to handle all of these without a separate campaign.
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Technical Specifications & Design Requirements
Getting specs right keeps your ad out of rejection queues. Per Meta's documentation for carousel ads, these are the numbers that matter.
Image dimensions and aspect ratios (1080 × 1080 recommended)
Meta recommends a minimum resolution of 1080 × 1080 px for carousel images. Square format (1:1) is the safest choice. It renders cleanly across Facebook Feed, Instagram Feed, and Stories placements. Meta applies a 3% aspect ratio tolerance, so very slight deviations are acceptable.
File types, sizes, and resolution minimums
Accepted formats are JPG and PNG. Maximum file size per image card is 30 MB. For video cards, the maximum file size is 4 GB. Keep images as large as possible within that limit for crisp rendering on high-density mobile screens.
Number of cards allowed (2-10)
Carousel ads require a minimum of 2 cards and allow up to 10. Most high-performing campaigns use 3 to 5 cards. More cards can work for collection-style ads, but attention tends to drop with each additional swipe.
Text limits per card
Per Meta's carousel ad documentation, keep your headline to 45 characters and your description to 18 characters per card. Primary text above the carousel displays best at around 80 characters. Text that overruns these limits gets truncated. Truncated copy loses its punch.
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Core Design Principles for High-Performing Carousels
Good specs get your ad live. Good design gets it clicked.
Visual consistency and brand alignment
Every card should feel like it belongs to the same family. Use a consistent color palette, font style, and logo placement across all cards. Coinis Brand Profile locks in your brand voice and visual identity so every generated card pulls from the same context automatically.
Strategic card sequencing and narrative flow
Think of your carousel as a mini-story. Card one hooks the viewer. Cards two through four deliver the value. The final card drives the CTA. Randomizing card order kills the story arc and leaves viewers confused about what to do next.
Mixing still images with video
A video card inside a carousel stands out. It adds motion to an otherwise static row of images. Mix one or two video cards with still images to create visual variety and hold attention longer across the swipe sequence.
Eye-catching, mobile-optimized visuals
Most Facebook users scroll on mobile. Design for a small screen first. Bold visuals, high contrast, and minimal text in the image itself perform better than cluttered cards. Keep important elements away from card edges where UI elements overlap.
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Copywriting & CTA Strategy
Copy is not optional. It is half the ad.
Customizing headlines and descriptions per card
This is one of the biggest mistakes advertisers make. They repeat the same headline across every card. Each headline should reflect the specific image or offer on that card. Card two and card six should say different things.
Writing compelling, concise copy within character limits
You have 45 characters for the headline. Use them fully. Highlight one benefit per card. "Free shipping on all orders" beats "We offer free shipping on all of your orders" every time. Shorter sentences land harder.
Linking each card to relevant destination URLs
Each card can point to a different URL. Use this. If card three shows a blue sneaker, link it to the blue sneaker product page, not your homepage. Matching the destination to the card's content lifts conversion rate.
Choosing the right call-to-action
Meta provides standard CTA buttons including Shop Now, Learn More, and Sign Up. Match the CTA to the intent of each specific card. A product card earns "Shop Now." An informational card earns "Learn More." Mismatching the CTA to the card's content creates friction.
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Design Approaches by Use Case
Product-focused: multiple angles and variants
Show the same product from different angles across each card. Color variants work well here too. Viewers who swipe are already signaling purchase intent. Give them the detail they need to convert.
Story-driven: sequential narrative arc
Build a before-during-after sequence. Or a step-by-step tutorial. Each card advances the story. The final CTA card delivers the payoff. This works especially well for services, apps, and transformational products.
Benefit-focused: highlighting features and value
Dedicate one card to each key benefit. Headline equals the benefit. Image equals a visual proof point for that benefit. This format works well for SaaS products, apps, and subscription services where features need individual attention.
Collection ads: complementary items together
Pair products that belong together. A kitchen brand might show a pot, pan, lid, and spatula across four cards. This encourages larger basket size and creates natural cross-sell moments inside a single ad.
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How Coinis Simplifies Carousel Ad Creation
Designing 10 individual cards from scratch takes hours. Coinis cuts that to minutes.
Image Ads workflow for generating carousel visuals at scale
The Image Ads workflow generates on-brand creatives from a product URL. Paste the URL, describe the card concept, and get multiple visual options fast. No design tool required. No template hunting. Cutting-edge AI models handle the creative heavy lifting.
Brand Profile for consistent voice and visual style
Brand Profile analyzes your brand and stores it. Every creative generated after that, whether card one or card ten, pulls from the same brand context. Visual and copy consistency across all cards happens automatically, not manually.
Revise for optimizing and customizing cards post-generation
Need to change text on a specific card? The Edit text on image capability inside Coinis Revise handles it in seconds. Need to resize a card for a different placement? Smart Resize does it in one click. Need to remove a distracting background element? AI Erase takes care of it without touching the rest of the image.
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Or let Coinis do it.
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Frequently Asked Questions
How many cards should a Facebook carousel ad have?
Facebook carousel ads support between 2 and 10 cards. Most high-performing campaigns use 3 to 5 cards. More cards can work for product collections, but attention drops with each additional swipe, so only add cards that carry distinct value.
What is the best image size for a Facebook carousel ad?
Meta recommends a minimum resolution of 1080 × 1080 px in a 1:1 square aspect ratio. This renders cleanly across Facebook Feed, Instagram Feed, and Stories. Max file size per image is 30 MB, and accepted formats are JPG and PNG.
Can each carousel card link to a different URL?
Yes. Each card in a Facebook carousel ad can point to its own destination URL. This is one of the format's biggest advantages. Link product cards directly to their product pages rather than a generic homepage to improve relevance and conversion rate.
Can you mix video and images in a Facebook carousel ad?
Yes. You can include both video and still image cards within the same carousel. Video cards add motion and visual variety to the swipe sequence. For video cards, Meta supports a maximum file size of 4 GB.