Wrap JSON data in valid JSON-LD (Linked Data) structure with @context and @type. Generate schema.org-compatible structured data. Code never leaves your device — formatting and validation run locally in your browser.
Content reviewed October 2026 · About Toolzum
Generate Apache Avro schemas from a JSON field definition. Configure namespace, record name, and field types — outputs valid Avro schema JSON.
Generate JSON Schema from sample JSON — types, required fields, and nested structure inferred automatically in seconds flat.
Generate sample JSON data from an Avro schema. Auto-generates values based on field types. Code never leaves your device — formatting and validation run locally in your browser.
Generate JSON-LD schema for Article, Product, FAQ, LocalBusiness, Recipe, and Event types. Add rich-result eligibility in minutes — free, local, copy-paste.
Generate BreadcrumbList JSON-LD for rich SERP trails — Home > Category > Product. Earn navigational breadcrumbs in results — local generation, free, no signup.
JSON-LD (Linked Data) is a method of encoding structured data using JSON. It wraps your data with @context (schema.org) and @type (Article, Product, FAQPage, etc.) for search engine rich results.
All schema.org types: Article, Product, FAQPage, HowTo, LocalBusiness, Event, Recipe, VideoObject, BreadcrumbList, and more.
Paste the generated JSON-LD into a <script type='application/ld+json'> tag in your HTML <head>. Google and other search engines parse it for rich snippets and knowledge panels.
Syntax only — the generator emits well-formed JSON-LD, but Google-eligibility (required/recommended properties per type) is not checked here. Paste the output into Google's Rich Results Test before shipping.
No. All generation happens locally in your browser. No structured data is transmitted.