We're on a mission to make world-class AI prompt engineering accessible to everyone — completely free, forever.
PromptOS was built with one goal: give every creator, developer, and business owner access to the same high-performance AI prompts that professionals use to get viral, high-impact results — without paywalls, subscriptions, or hidden fees.
We believe great AI prompts shouldn't be locked behind expensive courses or membership fees. Every single prompt in our library has been engineered, tested, and refined to deliver real results across all major AI models including ChatGPT, Claude, Gemini, Midjourney and more.
Hand-crafted prompts across 8 professional categories: Viral Content, Money Making, Design & AI Art, Coding, Marketing, Game Dev, Writing, and Business. Every prompt is built to produce professional-grade output from day one.
Describe your goal and our built-in AI generates a custom, production-ready prompt instantly — no API key, no signup, no cost. Powered by free AI technology so it's accessible to everyone.
Click "Try with AI" on any prompt and see live results directly inside PromptOS. No switching tabs, no copying and pasting back and forth — just instant output.
Every generated prompt can be copied with one click or downloaded as a .txt file — ready to use in ChatGPT, Claude, Gemini, Midjourney, or any other AI tool.
Every prompt is optimized to work across 150+ AI models. Whether you're a ChatGPT power user, a Claude fan, or a Midjourney artist — our prompts deliver consistent, high-quality results.
PromptOS is 100% free and will always remain so. The platform is supported by advertising — your first click may occasionally open an ad in a new tab. Just close it and come back. That's the only "cost" of using PromptOS.
No credit cards. No trials. No premium tiers. Everything you see is the full product.
PromptOS is a product by TrendingVAULT — a creative studio focused on building free, high-quality tools for the next generation of digital creators and entrepreneurs.
Have feedback, feature requests, or want to collaborate? Visit us at trendingvault.uk