Schema tools
JSON Schema Generator
Infer a practical draft JSON Schema from example data, with conservative required-field assumptions.
✓ Free✓ No sign-up✓ Local session
Example JSONJSON
JSON SchemaJSON Schema
How it works
Use Schema Generator in three steps
- 01
Paste a representative JSON example.
- 02
Generate the schema.
- 03
Review inferred types and choose required fields deliberately.
Quick example
From input to useful output
Infer a practical draft JSON Schema from example data, with conservative required-field assumptions.
{
"project": "StructFix",
"private": true,
"features": ["validate", "convert", "compare"]
}Common questions
JSON Schema Generator FAQ
Are inferred properties marked as required?+
No. A single example cannot prove a field is always required, so the generated schema stays conservative.
Which schema dialect is used?+
The output declares JSON Schema Draft 2020-12.