Schema tools
JSON Schema Validator
Validate JSON data against a supplied schema and get understandable errors with property paths.
✓ Free✓ No sign-up✓ Local session
JSON dataJSON
JSON SchemaJSON Schema
How it works
Use Schema Validator in three steps
- 01
Paste the JSON data and schema.
- 02
Run validation.
- 03
Follow each path to resolve failing rules.
Quick example
From input to useful output
Validate JSON data against a supplied schema and get understandable errors with property paths.
{
"name": "StructFix",
"version": 2
}Common questions
JSON Schema Validator FAQ
What schema rules are supported?+
The validator supports JSON Schema Draft 2020-12, including object, array, composition, conditional, string, and numeric constraints.
Does it change my JSON?+
No. It reports schema mismatches without mutating the input.