# JSON Schema Generator

> Infer a JSON Schema from example data, detecting types, string formats and required keys.

A JSON Schema generator infers a schema from example data: it walks the structure, assigns types, detects string formats such as email, date-time, uuid and uri, marks present keys as required, and merges the item types of a mixed array into an anyOf rather than guessing a single type.

**URL:** https://convertto.tech/t/json-schema-generator
**Category:** Developer Tools (https://convertto.tech/c/developer-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Enter or paste your example json.
2. Choose the required fields.
3. Choose the draft.
4. Enter or paste your schema title.
5. Turn "Include examples from the data" on or off as needed.
6. The result appears immediately — copy or download it.

## FAQ

### Is the generated schema ready to use?

It is a strong starting point, not a finished contract. A single example cannot show which fields are genuinely optional, what the real value ranges are, or which strings are enums — review those three before shipping it.

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