Template Variables
Detect and replace {{variable}} placeholders.
Variable prompts for batch workflows
Prompt Template Tester
Preview prompt templates with {{variables}} against JSON or CSV rows before batch prompting.
Variable PreviewJSON or CSVBatch Prompts
Template tester
Expand prompt variables across JSON or CSV rows before a batch run.
Prompt template
4 variables detected
JSON or CSV rows
2 rows parsed
Expanded prompts
4 variables · 2 rows · 2 prompts
toneaudiencefeaturecta
Capabilities
What this tool handles
Use Prompt Template Tester to check the input, tune the settings, and copy a clean output.
Row Inputs
Use JSON arrays or simple CSV rows as prompt data.
Prompt Preview
Copy expanded prompts for batch workflows.
Workflow
Run it in three steps
Preview variable prompts before batch runs.
1
Write Template
Use variables like {{tone}} or {{audience}}.
2
Add Rows
Paste JSON or CSV rows for variable values.
3
Copy Prompts
Review and copy the expanded prompt set.
Good for
Common jobs this tool supports
VariablesDouble-brace placeholders
Row DataJSON or CSV values
Preview FirstCheck prompts before running
Copy BatchCopy all expanded prompts
FAQ
Answers before you run it
Practical notes about output, privacy, and common settings.
Use double braces such as {{name}}, {{tone}}, or {{audience}} in the template.
Use next