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JSON Schema Validator

Validate JSON data against a JSON Schema (Draft-07) in your browser.

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About the JSON Schema Validator

Paste a JSON Schema and a JSON document to validate types, required properties, enums, string formats, numeric ranges, array constraints, $ref definitions and allOf/anyOf/oneOf combinators. Every error is reported with its JSON Pointer path and the rule that failed.

Examples

Missing required

{"type":"object","required":["id"]} + {}

Output

/ — missing required property 'id'

Keyboard shortcuts

  • Copy the main outputCtrl / ⌘ + Shift + C
  • Download the resultCtrl / ⌘ + S
  • Share this toolCtrl / ⌘ + Shift + S
  • Reset the inputsAlt + R
  • Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-16 · Runs entirely in your browser