Prompt Builder
Each framework asks for different building blocks
Sets the tone instruction inside the prompt
Tells the AI how to structure its response
The persona the AI should adopt
What you want the AI to do
Background details that shape the task
What the final result should look like
Prompt is 100% complete with 4 of 4 fields filled.Complete
100%Completeness
4Fields Filled
highDetail Level
64Prompt Words
Generated Prompt

You are an experienced product marketer.. Your task is to draft three different subject lines for a product launch email, communicated in a clear and balanced tone. Context: the product is a budgeting app aimed at freelancers, launching next Tuesday. Expected outcome: each subject line should be under 8 words and avoid generic phrases like Big News. Write the response as a plain paragraph.

How to use the AI Prompt Generator and Optimizer

Choose a Framework. APE is fastest for simple tasks, RACE adds a role and context, and SPARK is best for problem solving requests
Fill in each field with specific details rather than vague descriptions, since more detail improves the final prompt
Pick a Tone to control how the AI should sound when it responds to your prompt
Pick an Output Format such as Bullet Points or a Table to tell the AI exactly how to structure its response
Watch the Completeness and Detail Level stats to see how strong your prompt is before you use it
Switch between frameworks at any time. Your entries for each framework are kept separately so you can compare results
Use Copy Prompt to copy the generated prompt straight to your clipboard for pasting into any AI tool
Use Download TXT to save the prompt as a plain text file you can reuse later
All prompt building happens locally in your browser using pure JavaScript. Your inputs are never uploaded to any server and stay completely private