How to use Schema Validator Tool
- Start by adding the text you want to validate into Schema Validator Tool.
- Use the Paste JSON-LD or a <script type=application/ld+json> block setting to control the result.
- The result is computed live in your browser as you edit the input.
- When it looks right, Copy to save it.
About this tool
There is no server behind Schema Validator Tool. Schema Validator Tool builds structured-data markup in your browser from the fields you fill in.
The output follows schema.org shapes so search engines can read it. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What is Schema Validator Tool for?
Schema Validator Tool lets you validate your input right in the browser using the Paste JSON-LD or a <script type=application/ld+json> block control, with the result shown instantly and nothing uploaded.
Does Schema Validator Tool cost anything?
No — Schema Validator Tool is completely free, with no sign-up and no hidden limits.
Is my input private in Schema Validator Tool?
Yes — your input never leaves your device; Schema Validator Tool does all the work in your browser.
Does Schema Validator Tool validate against schema.org types?
Schema Validator Tool builds and checks the structured-data markup in your browser so you can paste it straight into your page.
Does Schema Validator Tool work on mobile?
Yes — Schema Validator Tool is just a web page and runs on any modern browser, including phones and tablets.