Prompt Template Builder
Fill in {{placeholder}} variables in a prompt template to generate the final prompt text — instantly, in your browser.
Fill a prompt template’s {{placeholders}} from a list of values. It runs in your browser and nothing is stored.
How to use it
- Write the template with placeholders in double curly braces, such as
{{topic}}. - List the values, one
name=valueper line. - Copy or download the filled prompt.
Example
The template Summarise {{topic}} for a {{audience}} in {{words}} words. with topic=solar panels, audience=beginner and words=100 becomes “Summarise solar panels for a beginner in 100 words.”
Good to know
Placeholder names can contain letters, digits and underscores. A placeholder with no value is left as written so you can spot it. Only the first equals sign on a line separates the name from the value, so values may contain equals signs. The tool fills in text only: it does not store templates, offer a prompt library or send anything to a model. Keep private data out of templates you share, and check the token count with the Token Counter.
See the guide.
FAQs
Can I reuse the same placeholder several times?
Yes. Every occurrence is replaced with the same value.