Web Metadata Tools
Inspect and validate page metadata
Inspect page metadata from pasted HTML or a public URL — Open Graph, Twitter Cards, JSON-LD, canonical URL, validation checklist, and tag suggestions. Uses the shared web inspect registry action (same as CLI/MCP).
Live tool
Shared registryPaste HTML or fetch a public https URL via the web API — same logic as devfoundry web inspect. Localhost and private addresses are blocked in production.
HTML Input0 chars
Page URL
Public http(s) URLs only in production. Localhost is allowed in local dev (npm run preview).
Extracted Metadata
Open Graph
Twitter Card
JSON-LD
Social Preview (Approximate)
Metadata Checklist
Suggested Tags
Capabilities
Paste HTML or fetch URL
Meta tag parsing
JSON-LD extraction
Validation & suggestions
Local-First / Privacy
- All processing happens in your browser — nothing is uploaded
- No data is sent to third-party services
- No telemetry or usage tracking
- Your HTML never leaves your browser tab
