PromptOS

PromptOS

Create custom GPT assistants without paying for ChatGPT Plus

10 followers

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PromptOS lets you generate expert-level System Prompts to turn any ChatGPT chat into a personalized assistant — no coding or Plus plan needed. Structured, powerful, reusable. Try it free with 3 credits. Use code PROMPTOS50OFF for 50% off.
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Launch tags:Productivity•SaaS•Developer Tools
Launch Team / Built With
Anima - OnBrand Vibe Coding
Design-aware AI for modern product teams.
Promoted

What do you think? …

Jose Road
Maker
📌
What if creating your own AI assistant was as easy as typing what you need? 🎉 Introducing PromptOS – a no-code platform to generate System Prompts that transform ChatGPT into a custom GPT without needing ChatGPT Plus. Whether you’re a marketer, developer, educator, or startup founder, PromptOS helps you create smart, structured assistants tailored to your goals — in seconds. 🚀 What makes PromptOS different? ✅ System Prompts with depth: Each prompt includes expert role, step-by-step instructions, Chain of Thought (CoT), edge cases, and what not to do — giving your AI precise, consistent behavior. ✅ Copy-paste simplicity: No need for ChatGPT Pro or API integration. Just paste the prompt into a normal chat, and you're good to go. ✅ Organize your assistants: Save your prompts, group them into folders, and build your own assistant library. ✅ Use cases: – Write better content – Build product strategies – Plan projects – Generate code – Teach, sell, learn & more 🧪 Try it free: Sign up and get 3 credits to test the app — no commitment needed. 🎁 Use launch code PROMPTOS50OFF to get 50% off your first pack of credits!
Cole
My Story Elf

Awesome product Jose, I will try this out to create some prompts fo rmy apps. We must be launch day twins or something anyway wishing you all the best.

Jose Road
Maker

@afwcole Hey Cole! Launch day twins indeed! 🚀
Thanks so much for the kind words — I’d love to hear what kind of prompts you end up creating for your apps. PromptOS works especially well for building modular assistants that you can reuse across projects, so feel free to DM me if you have any ideas or need help shaping a prompt structure.

Wishing you tons of upvotes and traction on your launch too! Let’s keep in touch 💬

María Then

I love it! It's super functional and has improved my productivity.