JSON Schema-Gültigkeitsprüfer & Formatierer

JSON Schema-Gültigkeitsprüfer & Formatierer

Validate your JSON data against a JSON Schema with precise, detailed error reporting. Paste your data and schema, select the draft version, and get instant feedback — including exact JSON Pointer paths to every validation error. All processing runs client-side, so your data never leaves your browser.

Anwendung

Paste your JSON data in the first textarea and your JSON Schema in the second. Select the schema draft version (draft-07, 2019-09, or 2020-12) and click Validate. The tool displays a clear pass or fail result with detailed error messages showing the exact path, violated keyword, and explanation for each issue. Use the Format buttons to beautify either input.

Merkmale

• Multiple Schema Drafts – Supports JSON Schema draft-07, draft-2019-09, and draft-2020-12 via the ajv validation library.
• Detailed Error Reporting – Each validation error shows the JSON Pointer path to the offending value, the violated keyword, and a human-readable error message.
• JSON Beautifier – Format and pretty-print both your JSON data and schema with proper indentation for easier reading and editing.
• Clientseitige Verarbeitung – All validation runs in your browser using the industry-standard ajv library. No data is sent to any server.
• Example Data – Try the built-in example to see how validation works before pasting your own data.

Wann Sie dieses Tool verwenden sollten

Use this tool when building or debugging APIs that use JSON Schema for request validation, testing configuration files against their schemas, or verifying that sample data conforms to a specification. It’s especially useful for catching subtle issues — missing required fields, type mismatches, or pattern violations — that are easy to miss by eye but break applications at runtime.