JSON Schema & API Documentation Generator

Paste a JSON sample to generate a schema and TypeScript types.

Interactive API Schema & Documentation Generator Interface

What you can do

JSON input

Paste a valid JSON payload. The service returns an inferred representation of its fields and types.

TypeScript draft

Review the generated TypeScript output as a starting point for documenting the response.

Copy the result

Copy the inferred schema from the result panel and adapt it to your project’s conventions.

Before you use the result

  • Use a representative sample with no passwords, tokens, personal data or other confidential fields.
  • Check optional fields, nullable values and array variations against additional examples. One sample cannot describe every possible response.

Questions

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Add your page URLs and download an XML sitemap.

SEO Audit & SERP Meta Preview

Write your title and description. See how they could appear in search.

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Send a request to a website or API and inspect its response.

Have a project in mind?