Utilora

Tool Calling JSON Schema Generator

Convert JSON arrays and objects into JSON Schemas natively for LLM tool-calling architectures.

How to use

  1. 1

    Paste JSON payload

    Insert an example of the desired response format.

  2. 2

    Select format

    Choose between strict JSON Schema or TypeScript interfaces.

  3. 3

    Copy code

    Paste the schema right into your LLM agent definition.

Why use this tool?

  • Eliminates the tedium of manually writing JSON type definitions
  • Runs entirely inside the browser locally

Frequently asked questions

Is this for structured outputs?
Yes! Use the JSON schema generated here as the `response_format` payload for OpenAI/Anthropic SDKs.

Related tools

Prompt Optimizer & Minifier

Compress markdown prompts, reduce JSON schemas to YAML to cut down on API token costs.

LLM Payload String Escaper

Safely escape multi-line code to insert directly into JSON properties without syntax errors.

Popular right now

JSON Formatter & Validator

Format, validate, and minify JSON instantly in your browser. Your data never leaves your device.

JWT Decoder

Decode JWT tokens and inspect header and payload instantly in your browser. Your tokens never leave your device.

Word Counter

Count words, characters, sentences, and estimate reading time instantly in your browser. No sign-up required.