Schema Markup Generator
Featured
Generate JSON-LD structured data markup.
- On your device
- No signup
SEO & Webmaster topic guide
Structured data tools
Generate and validate JSON-LD schema markup—free structured data tools on your device.
4 free tools in this guide — pick one below to get started.
Tools in this guide(4)
Open a tool to calculate, convert, or edit — no signup required.
Schema Validator
Featured
Validate JSON-LD structured data blocks in HTML.
- On your device
- No signup
Open Graph Preview
Featured
Preview Open Graph and Twitter Card tags.
- On your device
- No signup
Social Sharing Preview
Featured
Preview Open Graph and Twitter Card share appearances.
- On your device
- No signup
Overview
Structured data tools produce JSON-LD drafts and catch syntax issues before rich results break. This topic guide groups Utilnivo tools so you can move from rough estimates to a concrete next step without hunting across categories.
Start with the tool that matches your immediate question—schema markup generator, schema validator, open graph preview, social sharing preview—then open related tools, workflows, or long-tail pages when you need comparisons, exports, or follow-up checks.
Outputs are educational. Confirm numbers with professionals, instructors, or platform requirements before you sign, submit, or publish.
How to choose
- Schema Markup Generator → schema-markup-generator.
- Schema Validator → schema-validator.
- Open Graph Preview → open-graph-preview.
- Social Sharing Preview → social-sharing-preview.
Frequently asked questions
Who is Structured data tools for?
SEO specialists and developers adding FAQ, product, or article schema. Start with schema markup generator, schema validator, open graph preview, then open related topic guides when your task spans multiple steps.
Which tool should I use first in Structured data tools?
Use the how-to-choose list on this page—it maps common tasks to specific tools. Structured data tools produce JSON-LD drafts and catch syntax issues before rich results break.
Are these tools free?
Yes. Utilnivo tools are free for standard browser use with no account required.
Is my data stored online?
Calculations and file processing for standard tools run on your device unless a page explicitly performs a network lookup.
Step-by-step workflows (1)
Multi-step guides that chain tools from this topic—follow numbered steps instead of guessing tool order.