PostNitro

PostNitro is a web-based AI carousel creation and scheduling platform for marketers, agencies, small businesses, and creators who publish on LinkedIn, Instagram, TikTok, X, and Threads.

It combines AI copywriting with slide design so users can go from an idea to a formatted, multi-slide carousel without design skills:

• Generate carousels from a topic, pasted text, a URL, or an X (Twitter) thread/post URL, then choose slide count and refine the output
• Apply 100+ platform-optimized templates, brand kits, custom fonts, and color palettes, then preview and customize before export
• Schedule and directly publish carousel posts to supported platforms, or export as PNG/PDF
• Use the public API (plus integrations like Zapier) to embed or automate carousel generation in other tools and workflows

Pricing: Freemium. Free plan ($0, no credit card required). Paid plans include Starter ($15/month), Creator ($20/month), Team ($50/month); annual plans include 2 months free. API credits start at $10/month.

Notable for combining AI generation, templated design, scheduling, and an API in one tool, positioning it as an alternative to manual workflows in tools like Canva and other AI carousel generators.