Developer tools
JSON Schema validator
Validate a JSON document against a JSON Schema — errors show by path, all in your browser.
Valid — document matches the schema.
Your data never leaves the browser.
How it works
- Paste your JSON document and schema.
- Validation runs as you type.
- Fix reported paths, or open the formatter / workspace next.
FAQ
- Which draft does this use?
- Ajv with non-strict mode — suitable for common draft-07 style schemas.
- Is my schema uploaded?
- No. Validation runs only in your browser.