Validate JSON data against a JSON Schema (draft-7). JSON Schema Validator is a free online tool from the ToolsRift JSON Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Paste your schema and your data in the two panels; the validator reports whether the data conforms and lists each violation.
JSON Schema draft-7, the most widely adopted version for validating types, required fields and value constraints.
Each failing keyword — such as type, required, minimum or pattern — is reported with the JSON path where it occurred.
No — validation runs entirely in your browser, so both the schema and the data stay on your device.