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Fill In Prompt Template Variables

Paste a prompt template that uses {{variable}} placeholders, type a value for each one, and watch the finished prompt assemble live so you can copy it in a click.

Runs in your browser · nothing uploaded

Use {{double braces}} or {single braces} around each variable name. The same variable used more than once fills every spot at once.

Fill in the variables

No variables yet. Add {{placeholders}} to your template above and an input will appear here for each one.

Finished prompt

  
 
 
Saved templates
 
Nothing saved yet. Name a template and save it to reuse it later on this device.
 
 
 
 
 
 
  
  
 
 
 
Reusable AI prompts usually have a few parts that change every time, like the topic, the tone, or the audience. This placeholder prompt filler reads your template, finds every {{variable}} you wrote, and shows one labelled box per variable. Type a value once and it drops into every spot that uses that name, so a variable repeated three times fills all three at the same time.
It works with double braces like {{product}} and single braces like {product}. Nothing is uploaded and there is no sign up, so you can build a prompt library and reuse your ChatGPT prompts entirely in your browser. Save a template with its last values and reload it whenever you need it again.
 
 
 
  
 
How it works
 
     
  1.  1 
    Paste your template
     
    Drop in a prompt and mark each part that changes with {{variable}} or {variable}. Name them however you like, for example {{tone}} or {{word_count}}.
     
  2.  2 
    Fill in each variable
     
    An input appears for every unique placeholder. As you type, the finished prompt updates on the right and tells you how many variables are still empty.
     
  3.  3 
    Copy or save it
     
    Copy the assembled prompt to your clipboard, or give the template a name and save it so you can reload it and its values later on this device.
     
    4.  
 
  
 
 
Questions about filling prompt template variables
 
 
 
How do I fill in prompt template variables without editing the raw text?
 
Paste your template with {{variable}} placeholders and the tool detects each one, giving you a separate input box. You type values in the boxes and the finished prompt is built for you, so you never hunt through the raw text to swap words by hand.
 
 
What format should a prompt template with variables use?
 
Wrap each variable name in double braces like {{audience}} or single braces like {audience}. Names can include letters, numbers, spaces, underscores, dots and hyphens. Anything not wrapped in braces stays exactly as written.
 
 
What happens if the same variable appears more than once?
 
One input fills every occurrence. If {{name}} shows up three times in your template, typing it once replaces all three spots at the same moment, so repeated placeholders stay consistent.
 
 
Can I save and reuse my ChatGPT prompts?
 
Yes. Give a template a name and save it, and it is stored in your browser along with the last values you entered. Reload it any time from the saved list to reuse a reusable AI prompt without retyping it.
 
 
Is it free?
 
Yes, it is free with no sign up. Everything runs in your browser, nothing you type is uploaded, and your saved templates stay on your own device.
 
 
 
 
  
 
 
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