UWTools
Developer Tools

JSON Schema Validator

Validate JSON data against a JSON Schema without uploading either file.

—Result
0Errors
LocalProcessing
Validation results will appear here.

Supports common JSON Schema keywords through Ajv.

Local JSON Schema validation

Both the schema and JSON data are parsed and validated in your browser.

Schema dialects

JSON Schema has multiple drafts. This lightweight browser validator is intended for common validation workflows and may not support every extension or custom format.