EasyConvert / AI & Prompt Tools

OpenAI & Claude Function / Tool Spec Builder

Convert JSON payloads and schemas into OpenAI Function Calling & Claude Tool Spec JSON. Free browser-based tool with no signup required.

About OpenAI & Claude Function / Tool Spec Builder

Convert JSON payloads and schemas into OpenAI Function Calling & Claude Tool Spec JSON.

The tool is designed to process data in the browser unless the interface explicitly states that a network request is required.

How to use this tool

  1. Enter or select the function name, json params value you want to work with.
  2. Review the available settings, then run the generate action.
  3. Review the openai tool JSON definition output and use the copy or download action when the tool provides one.

What you can do with OpenAI & Claude Function / Tool Spec Builder

  • Create openai function definition
  • Generate claude tool spec

Frequently asked questions

Is OpenAI & Claude Function / Tool Spec Builder free?

Yes. EasyConvert tools are completely free to use without an account or signup.

Can I use it on mobile?

Yes. The interface is fully responsive and works smoothly in all modern desktop and mobile browsers.

Is my data secure?

Yes. Processing is performed locally in your browser. Sensitive inputs are never stored or logged.

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