Free tierSave, organize, share, and improve prompts across ChatGPT, Claude, and Gemini.
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Listed as The interface is free, but the current app asks the user to provide an OpenAI API key. Any model usage is billed by OpenAI under the user's own API account, so this is not an all-inclusive free AI service.
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Text & Writing Checked Aug 26, 2026
Just Prompts
Give it the subject and desired direction, then use additive prompting to turn the rough idea into a stronger instruction.
Best for: Creators and prompt beginners who want a quick structure for turning a rough idea into a clearer prompt
What you can do with it
- Turn a rough image idea into a more specific prompt
- Improve a content brief before sending it to an AI model
- Explore additive prompting for a writing or brainstorming task
- Save a personal OpenAI API key for repeated prompt refinement
Good to know
- Live and very focused workflow
- Free interface
- Simple additive-prompting concept
- Useful for rough ideas and beginners
Limitations
- User supplies an OpenAI API key
- API usage is not included
- Limited documentation and customization
Other official links
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