AI Prompt Template Builder 🔒 Runs locally in your browser — nothing is uploaded.

Compose structured LLM prompts: role, task, examples, output format.

Load a starter preset:

Composed prompt

 
  
     
 
About this tool
  
Compose well-structured LLM prompts section by section — role, task, context, few-shot examples, and output constraints — with a live preview. Saved only in your browser.
 
Looking for ready-made prompts instead? Try the AI Prompt Library.
   
Frequently asked questions
 
 
How is this different from the AI Prompt Library?
 
The AI Prompt Library is a browsable, searchable collection of hundreds of ready-made "act as X" prompts you can copy as-is. This tool is a builder — an empty structured form (role, task, examples, constraints) for composing your OWN custom prompt from scratch, section by section, rather than picking from an existing list.
 
 
Is my prompt saved anywhere?
 
Only in your own browser's local storage, so it survives a page reload on your device — nothing is ever sent to a server. Clearing your browser data will remove it.