Prompt Template Builder
Turn AI prompts into reusable templates with {{variables}} and generate a finished prompt just by filling in the values.
Write placeholders in the form {{variable}}
Write {{variables}} in your template and input fields will appear here.
How to Use
Write a template
Wrap the parts you want to swap in {{ }}, like {{role}}, to draft your prompt.
Fill in the variables
Enter values into the auto-extracted variable fields and the result updates in real time.
Copy and use
Copy the finished prompt and paste it into your AI chat. Save your favorite templates in the browser.
About the Prompt Template Builder
A tool for managing prompts you send to AI assistants like ChatGPT, Claude, and Gemini as reusable templates, replacing only the parts that change with {{variables}}. It removes the hassle of rewriting the same prompt structure over and over and keeps your output consistent. Templates are stored only in your browser (localStorage) and your input is never sent to any server.
Features
- Auto-extract variablesJust write a template and {{variables}} are detected with input fields generated automatically.
- Real-time expansionThe expanded prompt updates instantly every time you change a value.
- Save in browserName, save, and recall the templates you use most often.
- Fully client-sideAll processing runs in your browser. Prompts are never sent externally.
Use Cases
- Standardize prompts for blog posts and social media
- Manage repeated instructions like translation, summary, and proofreading
- Reuse role-based prompts with a defined persona
- Developer prompts for code review and test generation
- Align a shared prompt format across a team
FAQ
Are my prompts and templates sent anywhere?
How do I write variables?
How accurate is the approximate token count?
Can I use saved templates on another device?
What happens to variables I leave empty?
Is there any cost?
Feedback
Missing a feature, or getting a result that looks wrong? Let us know — we improve our tools based on your feedback.