Prompt PebbleAI prompt builder & token estimator

One template · many prompts

Prompt variable filler

Paste a template with {{variables}}, fill the gaps in a form or from spreadsheet rows, and get finished prompts ready to copy, one per row.

No variables yet. Type {{ and a name to add one.

Fill the variables from

Finished prompt


					
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How to fill a template

			
Write or paste your template on the left. Every {{name}} becomes a variable, listed in the order it first appears, and a variable used twice is filled once. Give one a default with {{name|default text}} and it is used whenever you leave that variable empty. Names may hold letters, numbers, underscores, dots and hyphens, and matching ignores case.

			
In form mode, type a value for each variable and the prompt updates as you go. In CSV mode, paste rows copied from a spreadsheet, or a CSV file whose header row names the variables; each row becomes one prompt. Columns match variables by name, ignoring case, spaces and hyphens, so a First Name column fills {{first_name}}. Variables without a column use their default or stay in braces so you can see the gap.

			
Downloads

			
Copy all joins the prompts with a line of three dashes. The CSV download adds a prompt column to your original rows, ready to open in a spreadsheet, and JSONL gives one JSON object per line for scripts and batch APIs.

		

		

			

				
Good to know

				
    
					
  • Any template in the library opens here with Fill from a spreadsheet.
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  • Quoted CSV fields can hold commas and line breaks.
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  • The page shows the first 200 prompts; downloads include every row.
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Questions

		

			

				What variable syntax is supported?
				
Double braces: {{name}}, with optional spaces inside, and {{name|default}} for a default value. Single braces such as {name} are left alone and flagged, because they often appear in code and JSON.

			

			

				My spreadsheet has more columns than the template needs. Is that a problem?
				
No. Extra columns are ignored when filling, but kept in the CSV download so you can match each prompt back to its row.

			

			

				How many rows can I fill at once?
				
Thousands; the limit is your device's memory rather than a fixed number. The page shows the first 200 prompts and the downloads contain all of them.

			

			

				Is my data uploaded?
				
No. Templates, rows and finished prompts stay in this browser tab, and nothing is kept after you close it.