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Catch the change.
Before it ships.

Your schema changed. Did your contract?
Validate JSON. Compare revisions. See what needs a second look — without uploading your data.

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Schema review / PurchaseInteractive example

{
  "properties": {
    "total": {
      "type": "number",
      "type": "integer",
      "minimum": 1
    }
  }
}

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Small surface. Clear boundaries.Browser-local processingJSON Schema validationRevision comparison

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Less guessing.
More understanding.

A valid document isn’t always a compatible change. Keep payload validation and schema review together, with the context to make the call.

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Check types, required fields, enums and constraints. Findings show the JSON path and the rule that didn’t match.

Compare revisions for narrower types, new requirements and tightened bounds. Download the report before you decide what ships.

Purchase / example payloadNeeds attention

{
  "id": "order_demo",
  "status": "paid",
  "total": "42.50",
  "currency": "USD"
}

/total · expected a number

A string value doesn’t satisfy the numeric contract.
Adjust the payload or review the schema.

Sample data, not a production log.JSON / schema

Built with restraint

Start with the example. Then bring your own contract.