What this tool does
Schema Validator: free online SEO & Website tool with clear controls, private processing where supported and verifiable results.
Input and output
Validate schema markup: text you paste into the page → the Schema Validator result, which you can copy and download when the tool produces a file
How to use Schema Validator
- Provide text you paste into the page.
- Fill in JSON-LD, Microdata HTML or RDFa HTML.
- Leave Format at its default "auto" or choose another value.
- Press "Validate schema markup" and review the result in the panel on the right.
- Download or copy the Schema Validator result, which you can copy and download when the tool produces a file.
Settings
Privacy and limitations
- Schema Validator runs entirely in your browser: the input is not uploaded, so it never leaves your device.
- Results depend on valid input and on the limits declared by each field above; this page does not promise a fixed processing time or file size.
Frequently asked questions
- Is my data uploaded when I use Schema Validator?
- No. This tool runs entirely in your browser, so the input stays on your device and is not uploaded.
- Which input does it accept?
- It works with text you paste into the page.
- What do I get back?
- After you press "Validate schema markup" the result panel shows the Schema Validator result, which you can copy and download when the tool produces a file, which you can copy or download.
- Can I change the settings?
- Yes. The page exposes Format (Detect automatically, JSON-LD, Microdata (HTML), RDFa (HTML)).
