Instagram carousels get 3x more engagement than single image posts. But designing slides manually is slow, especially when you need to write captions for each one. VidMint is an Instagram carousel maker that generates complete slide sets with AI captions automatically.
AI Writes Every Slide Caption
VidMint generates captions for all slides in a single AI call, so the narrative flows naturally from slide 1 to the final slide. The AI follows a story arc: hook on slide 1, problem, proof, solution, and call to action on the last slide.
Multiple Variations from the Same Photos
Upload a pool of photos and VidMint generates multiple carousel sets, each with different photo combinations and caption sets. 8 photos and 3 caption sets can produce dozens of unique carousel variations.
Optimized for Instagram
All slides render at 1080x1350 (4:5 ratio), the optimal size for Instagram carousels. The same slides also work on LinkedIn, X (Twitter), and Pinterest carousels.
Caption Style Picker
Choose your font, color, size, and background style. Position captions at the top, center, or bottom of each slide. The style is consistent across all slides in a set for a polished, branded look.
Download and Post
Download all slides as individual PNG images. Upload them in order to Instagram, LinkedIn, or any platform that supports carousel posts.