Prompt JSON Generator

What is Prompt JSON Generator?

Prompt JSON Generator is a tool designed to help AI developers and prompt engineers create structured JSON templates for large language model (LLM) prompts. It provides a visual interface to define variables, their descriptions, and relationships.

Available Variable Types

• String: A simple text value with a description.
• StringArray: An array of strings, using the description as a sample value.
• Object: A nested object that can contain other variables.
• Array: An array of objects, where each object follows the structure defined by its child variables.

Step-by-Step Guide

1. Click the "Add Variable" button to create a new top-level variable.
2. Enter a name and description for your variable.
3. Select the appropriate type (string, StringArray, object, or array).
4. For object and array types, you can add nested variables by clicking "Add Nested".
5. The JSON preview on the right will update automatically as you make changes.
6. Use the "Copy" button to copy the generated JSON to your clipboard.

Use Cases

• Creating structured prompts for ChatGPT, Claude, or other LLMs
• Designing templates for AI function calling
• Building JSON schemas for AI response formatting
• Documenting expected input/output structures for AI systems