JSON Schema Validator
Validate JSON against a JSON Schema. See per-field errors with paths.
About JSON Schema Validator
The JSON Schema Validator checks a JSON document against a JSON Schema. Paste your data in one panel and the schema in the other, and the tool reports whether the data is valid and lists each error with the path to the field that failed.
Validation runs in your browser, so the schema and the data you test stay on your device. Per-field error paths make it straightforward to find a missing required property, a wrong type, or a value outside an allowed range when debugging API payloads or configuration files.
Frequently asked questions
- Which JSON Schema versions are supported?
- The validator supports the widely used JSON Schema drafts; write your schema against a current draft for the most reliable results.
- What do the error paths mean?
- Each path points to the exact location in your JSON where a rule failed, so you can see which field caused the error.
- Is my data sent to a server?
- No. Both the JSON and the schema are validated locally in your browser.