Toolbox

Seo TOOL

Schema Markup Validator - Validate JSON-LD

Validate JSON-LD structured data — check syntax, @type and required fields, with exact error locations. Free, 100% client-side; complements Rich Results Test.

Enter your content

How to use this tool

  1. Enter or select your input.
  2. Run the tool and review the result.
  3. Copy or download the output when available.

About this tool

Validate JSON-LD structured data — check syntax, @type and required fields, with exact error locations. Free, 100% client-side; complements Rich Results Test.

Frequently asked questions

Is my data uploaded?

This tool processes input in your browser. Files and text are not sent to our server by this page.

KEEP GOING

View all tools ↗

Explore other utilities that may help with your next task.

AI Crawler Control - Block or Allow AI BotsGenerate robots.txt rules to allow or block AI crawlers — GPTBot, ClaudeBot, PerplexityBot, Google-Extended and more — with per-bot context. 100% client-side.Article Schema Generator - Article JSON-LDGenerate Article or BlogPosting JSON-LD with author, publisher and dates, ready to paste. Free and 100% client-side — clearer signals for SEO and AI.Breadcrumb Schema Generator - BreadcrumbListGenerate BreadcrumbList JSON-LD from your page hierarchy, with correct positions, ready to paste. Free and 100% client-side — clearer structure for search.