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JSON Schema Validator

v1.0.0

JSON Schema Validator

Validate JSON against a schema with inline errors, presets, and draft selection.

Warning

This tool is not supported on mobile devices, please use a desktop device for better experience.

Schema JSON
Parsed
Data JSON
Parsed
Validation
idle
JSON Schema
361 charsDraft 07
JSON Data
97 charsValidates locally
Validation Results
ErrorsShowing up to 50 items
No detailed errors available.
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What this tool does

The JSON Schema Validator checks your JSON data against a JSON Schema locally in the browser. It supports draft-07 and draft-2019-09 and shows inline errors with paths and keywords.

How to use it

  1. Paste or write your JSON Schema and JSON data in their tabs.
  2. Select the draft that matches your schema (draft-07 or draft-2019-09).
  3. Review the results tab for a validity badge and any error messages with paths.

Tips

  • Keep additionalProperties explicit to avoid surprises.
  • Use formats (e.g., email, uri, date-time) to tighten validation.
  • If validation fails to run, first confirm both schema and data are valid JSON.