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JSON Schema Generator

Q: How are arrays handled?

Array item schemas are inferred from all sample items and merged when multiple value types appear.

Generate a draft-style JSON Schema from sample JSON with nested properties and array item inference.

Open the schema generator workspace

JSON workspace

Use Schema Generator

Add your input, choose the available settings, and review the result before using it.

Sample JSONjson

JSON Schema

1{2  "$schema": "https://json-schema.org/draft/2020-12/schema",3  "type": "object",4  "properties": {5    "name": {6      "type": "string"7    },8    "category": {9      "type": "string"10    },11    "features": {12      "type": "array",13      "items": {14        "type": "string"15      }16    },17    "metadata": {18      "type": "object",19      "properties": {20        "private": {21          "type": "boolean"22        },23        "version": {24          "type": "integer"25        }26      },27      "required": [28        "private",29        "version"30      ],31      "additionalProperties": true32    }33  },34  "required": [35    "name",36    "category",37    "features",38    "metadata"39  ],40  "additionalProperties": true41}

Generated schemas are inferred from examples. Review optional fields, formats, enums, and numeric constraints before production use.

Simple workflow

How to use JSON Schema Generator

01
Add your input
Enter values, paste content, or choose files in the workspace.
02
Choose your settings
Adjust the available options to match the result you need.
03
Review the result
Check the output before you copy or download it.

Before you use the result

Processing happens in your browser. Toolsera does not upload the content you add to this workspace.