Free tool

Metadata and schema checker for page code.

Paste rendered HTML or a head snippet and get a browser-only check for titles, descriptions, canonicals, social tags, H1s, and JSON-LD before code review.

Check metadata View all tools

No signup
Runs in browser
No upload

HTML, head snippet, or JSON-LD

<title>Page Brief Generator - Free SEO Brief Tool — Pagewell</title>
<meta name="description" content="Generate a Pagewell-ready page brief for SEO pages, landing pages, docs, comparisons, and free tools as code. No signup required." />
<link rel="canonical" href="https://pagewell.dev/tools/page-brief-generator" />
<meta property="og:title" content="Page Brief Generator - Free SEO Brief Tool — Pagewell" />
<meta property="og:description" content="Generate a Pagewell-ready page brief for SEO pages, landing pages, docs, comparisons, and free tools as code. No signup required." />
<meta property="og:image" content="https://pagewell.dev/og.png" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="Page Brief Generator - Free SEO Brief Tool — Pagewell" />
<meta name="twitter:description" content="Generate a Pagewell-ready page brief for SEO pages, landing pages, docs, comparisons, and free tools as code." />
<h1>Page brief generator for pages as code.</h1>
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebApplication",
  "name": "Page Brief Generator",
  "applicationCategory": "DeveloperApplication",
  "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }
}
</script>

Runs locally in your browser. No signup and no upload.

Metadata result Click “Check metadata” to inspect the pasted HTML.

How to use

Preflight the tags an agent may forget.

Pagewell QA checks generated pages before discovery updates. This utility turns the metadata and schema portion into a fast pasted-HTML preflight.

Paste rendered HTML

Use view-source output, a built page snippet, or the head and H1 area from a generated route.

Check required tags

Inspect title length, description length, canonical URL, social tags, H1 count, and robots hints.

Parse JSON-LD

Confirm schema blocks parse and that visible FAQ or free-tool facts justify the detected types.

Example output

Useful checks combine syntax and intent.

The checker is intentionally practical: it flags missing tags, parse failures, questionable lengths, and schema that needs visible page support.

metadata result

Score: 88/100
[pass] Title found: 58 characters.
[pass] Canonical URL is absolute.
[warn] Missing twitter:description.
[pass] JSON-LD block 1 parsed: WebApplication.

Related tools

Connect metadata checks to the full Pagewell workflow.

Generate metadata in source

Want metadata generated and checked in source?

Install Pagewell so your agent can use the target repo's layout, SEO head component, schema helpers, and discovery rules instead of checking a pasted snippet only.

$ bunx skills add ReScienceLab/pagewell --skill pagewell

Then ask: Use Pagewell to generate this page and QA metadata, schema, canonical, and discovery files.

FAQ

Common questions, answered directly.

What can I paste into the metadata and schema checker?

Paste rendered HTML source, a page head snippet, or JSON-LD. The checker works best with final HTML because it can inspect title, meta description, canonical, social tags, H1s, and schema together.

Does this validate live URLs?

No. The MVP is browser-only and uses pasted text so there is no fetch, crawl, API cost, or server-side processing.

Can this replace structured data testing tools?

No. It is a fast Pagewell-style preflight. Use official rich result or schema testing tools for final eligibility checks when needed.