JSON Schema Infer & Validate

Infer a simple schema or validate JSON locally (Draft-07 subset).

Interactive controls load with JavaScript. Processing stays in your browser.

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How to use

  1. 「推断」:在左侧粘贴样例 JSON,生成简化 Draft-07 风格 Schema。
  2. 「校验」:左侧 JSON、右侧 Schema,查看通过或逐条错误路径。
  3. 支持 type/properties/required/items/enum/数值与字符串约束、allOf/anyOf/oneOf/not 等子集。
  4. 本地校验,不上传;复杂 $ref 远程引用不支持。

SSS

Does JSON Schema Infer & Validate upload my data?

No. JSON Schema Infer & Validate runs locally in your browser and does not upload content to www.518882.com or third-party APIs.

Do I need an account?

No. Open and use — no signup, login, or paywall. Open JSON Schema Infer & Validate and use it — no signup, login, or paywall.

How is this different from upload-based tools?

Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.

Are there limits?

Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.