LinkedIn carousels earn 278% more engagement than text posts (Buffer, 2025). Carosello writes the post, generates custom images via Google Gemini, and builds your complete carousel in a single AI-native workflow — with narrative analysis, dual-reference image controls, retouch mode, and brand-aware prompts. No design skills. No subscriptions.
The Numbers Behind the Features
Carosello ships the features that move LinkedIn engagement — not a menu of options. Each tool below maps directly to a verified engagement multiplier from independent research by Buffer, Sprinklr, Hootsuite, and ALM Corp.
278%
More engagement vs text posts
Carosello's AI post writer structures every slide for the carousel format that earns 278% more engagement than plain text. Source: Buffer, 2025
11.2x
More impressions via carousels
Custom visuals are the single biggest reason carousels drive 11.2x more impressions than text updates. The Image Laboratory generates one per slide via Google Gemini. Source: Sprinklr, 2025
6-10
Slides for peak completion
The AI post writer targets the 6-to-10 slide format with the highest completion rates — the sweet spot where dwell time peaks before drop-off accelerates after slide 7.
21.77%
Median carousel engagement rate
Carousels achieve a 21.77% median engagement rate — roughly 3x higher than video at 7.35%. Brand-aware prompts keep every slide on-voice to protect that multiplier. Source: ALM Corp, 2026
~€0.10
Per carousel with BYOK
Bring Your Own Key mode uses your Google Gemini API key directly — roughly €0.10 per carousel. Contentdrips and Postnitro start at $15/month. Supergrow at $19/month. None offer BYOK.
5 min
From topic to exported deck
The end-to-end workflow — AI post, image generation, slide editing, ZIP export — completes in 5 minutes on average. Canva takes 1 to 3 hours for the same output.
Carosello is purpose-built for LinkedIn carousels, not a general-purpose design tool. It combines AI post writing, custom image generation via Google Gemini, guided slide editing, and one-click ZIP export in a single 5-minute workflow. Unlike subscription-based competitors (Supergrow $19/mo, Contentdrips $15/mo, Postnitro $15/mo, Taplio $49/mo), Carosello uses pay-as-you-go credits from €4 or free BYOK with your own Gemini API key — roughly €0.10 per carousel.
Describe your topic in one sentence or upload a PDF, Markdown file, or CV. Carosello's AI performs narrative analysis, picks the optimal slide structure (discovery-led, problem-solution, or framework), writes the complete post with hook, body, CTA, and hashtags, then generates matching custom images for every slide. The finished carousel exports as a ZIP bundle ready to upload directly to LinkedIn — no manual design, no templates, no formatting required.
Carousel posts earn 278% more engagement than text-only posts, 303% more than single images, and 596% more than link posts according to Buffer's 2025 dataset. Carosello's AI post writer structures content specifically for the 6-to-10 slide carousel format proven to achieve the highest completion rates on LinkedIn, and 83% of marketers now rely on AI tools to create content faster (Hootsuite Social Trends, 2025).
Enter your topic, upload context documents, and AI generates a complete LinkedIn post — hook, body, CTA, hashtags — plus a narrative analysis that explains why the structure works and how each slide connects.
A dual-panel editor shows the AI-generated content alongside your edits. Refine with one click, track every change, and see slide type badges that explain each slide's role — Opening Hook, Key Point, Case Study, or CTA.
The Image Laboratory is a full creative studio. Write a prompt or let AI generate one from your slide content, pick your aspect ratio and resolution, then generate with Gemini 3 Pro for professional results.
Control both what appears in the image (content reference) and how it looks (style reference). Enable face-safe mode for portraits that preserve identity across every slide in your carousel.
Upload any reference image and AI analyzes its composition, style, colors, and elements — then produces a detailed text prompt you can use as a starting point for your own generation.
Retouch Mode turns your cursor into a precision editing tool. Click anywhere on a generated image, type what you want changed, and AI edits just that area — preserving everything else intact.
And There's More
The Improve button rewrites your prompt for better results. Quick Edit lets you describe a change in natural language and AI rewrites the full prompt accordingly.
Every edit is versioned. Compare any two versions with a diff viewer that highlights additions and removals at word or character level.
Configure 16 brand colors — background, primary, secondary, accents, typography — and they're injected as hex values into every image generation prompt.
Your brand profile gives AI context about your expertise, voice, and values — including term substitutions and forbidden phrases for brand safety.
Structured caption editor separates hook, body, CTA, and hashtags. AI generates each section with posting time recommendations and engagement tips.
Interactive Demo
Video Walkthrough
Feature Comparison
| Feature | Carosello | Canva | Buffer | Figma |
|---|---|---|---|---|
| AI Post Writing | Yes + Narrative Analysis | No | No | No |
| AI Image Generation | Prompt-based + Dual-Reference | Limited | No | No |
| Image Editing | Retouch Mode + Quick Edit | Basic | No | Manual |
| Image to Prompt | Yes | No | No | No |
| Version Diff | Word-level diff | No | No | No |
| Brand Color System | 16 auto-injected colors | Brand kit (paid) | No | Manual |
| Design Skills Needed | None | Basic | Basic | Advanced |
| Time per Carousel | 5 min | 20-30 min | 10-15 min | 30-45 min |
Features FAQ
Every feature on this page is available right now. No design skills. No credit card. No subscription.