SEO, Schema & HTTP Studios
SERP/OG social previews, Next.js/HTML metadata, Schema.org JSON-LD, RFC 9309 robots.txt & sitemap builders, cURL → code converters, and CSP/CORS header studios.
2 unified studios · 100% client-side execution · Zero uploads · No sign-up
Preview SERP and Open Graph cards, build Schema.org JSON-LD, simulate RFC 9309 robots.txt rules, and transpile cURL commands or CSP/CORS/redirect headers.
Technical SEO & Schema Studio
Preview Google SERP pixel widths & social cards, export HTML/Next.js metadata, build 6 Schema.org JSON-LD types, simulate RFC 9309 robots.txt rules, and generate sitemaps, hreflang & UTM links.
cURL, HTTP & Security Header Studio
Convert curl commands to fetch(), axios, Python requests, and Go net/http, build Content-Security-Policy (CSP) & CORS headers, generate nginx/Vercel/Next.js redirect rules, and browse HTTP status codes.
Common workflows in SEO, HTTP & Web Studios
Metadata, JSON-LD, robots.txt & hreflang
Audit pixel-accurate title/description widths, export Next.js metadata, test robots.txt wildcards, generate XML sitemaps, and build hreflang/UTM tags.
cURL transpilation, security headers & redirects
Convert cURL flags to fetch/axios/Python/Go, compose CSP & CORS headers, and compile bulk 301/308 rules for Next.js, Nginx, Cloudflare, and Apache.
SEO, HTTP & Web Studios — frequently asked questions
- Can I safely paste cURL commands containing staging Bearer tokens?
- Yes. HTTP & API Studio parses cURL commands entirely in browser JavaScript without sending requests.
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37 local-first utilities across 11 categories — free and ready with no sign-up.