Free AI Prompt Variable Extractor

🤖 Prompt Variable Extraction & Templating

Enter Prompt (with variable placeholders)

Variable Format

📖 Prompt Variable Best Practices

Why Variable-ize Prompts?

Extracting variable parts from prompts allows you to: 1) Quickly generate prompts for different scenarios; 2) Build reusable prompt template libraries; 3) Facilitate team collaboration and version management; 4) Enable API-based prompt calls.

Variable Naming Tips

Use meaningful names: {{role}} not {{r}}
Use underscores: {{target_audience}} not {{targetaudience}}
Indicate types: {{topic_text}}, {{max_count}}, {{is_creative}}
Add default hints: {{tone|professional-friendly}}

Common Variable Types

Role: {{role}}, {{persona}}, {{expertise}}
Content: {{topic}}, {{key_point}}, {{example}}
Format: {{format}}, {{length}}, {{tone}}
Constraints: {{max_words}}, {{language}}, {{style}}

❓ FAQ

What are prompt variables?

Prompt variables are replaceable placeholders in prompts, marked with special syntax. Common formats: {{variable}}, {variable}, [variable], etc. Extracting variables allows you to create reusable prompt templates.

What variable formats are supported?

Supports: 1) Double curly {{variable}}; 2) Single curly {variable}; 3) Square brackets [variable]; 4) Dollar sign $variable; 5) Percent %variable%; 6) Angle brackets <variable>. Auto-detect all formats available.

What are extracted variables useful for?

1) Template prompts for reuse; 2) Generate API call parameter structures; 3) Document prompt input parameters; 4) Batch generate prompts with different parameters.

How to use extracted variables?

After extraction: 1) Fill in specific values for real-time preview; 2) Copy JSON format variable structure for API calls; 3) Export templates for team use.

Is my data secure?

Completely secure. All processing is done locally in your browser. No prompt content is sent to any server.

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