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AI Prompt Template Builder

Build structured prompts with reusable templates, variables, and multi-format output for OpenAI, Anthropic, and Gemini APIs. All processing happens in your browser.

System Prompt

Prompt Sections

Variables (use {{name}} in prompts)

{{}}=

Additional User Input (paste code, data, or context)

Output Format

Output Preview

~177 tokens708 chars

[SYSTEM]
You are an expert code reviewer. Analyze the provided code for bugs, performance issues, security vulnerabilities, and adherence to best practices. Be specific and actionable in your feedback.

[USER]
## Role
You are an expert TypeScript code reviewer with 10+ years of experience.

## Context
Review the following TypeScript code from a web application project.

## Task
Analyze this code for:
1. Bugs and logical errors
2. Performance issues
3. Security vulnerabilities
4. Best practice violations
5. Readability improvements

## Output Format
For each issue found, provide:
- **Severity**: Critical / Warning / Info
- **Line**: The affected code
- **Issue**: What's wrong
- **Fix**: How to fix it

Variable Quick-Fill

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