Free SEO Tools
Frost Rank's toolkit is a growing set of browser-based utilities for SEO, structured data and everyday developer tasks — things like generating JSON-LD schema, validating a robots.txt file, or checking redirect chains, without installing anything or creating an account. Every tool on this page is free, runs entirely in your browser, and is built from a problem actually hit on a real client site rather than wrapped around someone else's API. Pick one below and start using it immediately.
All tools
SEO & Content
Meta / OG Tag Generator
Build accurate title, description, Open Graph and Twitter Card tags with live previews. Try it now →
!JSON-LD Schema Generator
Generate valid structured data for Person, Organization, Product, FAQ and more — no hand-written JSON-LD. Try it now →
!Robots.txt / Sitemap Validator
Catch crawl-blocking mistakes in robots.txt and XML sitemaps before Google finds them for you. Try it now →
!llms.txt Generator
Generate a spec-valid llms.txt file from your sitemap, or validate an existing one, so AI assistants get a clean map of your site. Try it now →
!Developer & Technical
JSON Formatter & Validator
Beautify, minify and validate JSON instantly with error highlighting. Try it now →
!Base64 Encoder / Decoder
Encode or decode text, images and files to and from Base64 instantly. Try it now →
!Redirect Chain Checker
Trace 301/302 redirect chains for any URL and spot SEO-killing redirect loops. Try it now →
!HTTP Header Checker
Inspect response headers, security headers and caching behavior for any URL. Try it now →
!HTML Formatter & Source Checker
Paste a URL or HTML code and inspect the raw, formatted source — no browser dev tools needed. Try it now →
!HTML Viewer & Live Renderer
Paste HTML, CSS and JS and see an instant rendered preview — like a mini sandbox in your browser. Try it now →
!Generators & Calculators
QR Code Generator
Generate a QR code for a URL, Wi-Fi network, contact card, email or text — with colors, a center logo, PNG/SVG download and printable Wi-Fi cards. Try it now →
!Barcode Generator
Generate barcodes in 12 formats (Code 128, EAN-13, UPC-A and more) with automatic check digits, print-ready labels and PNG/SVG download. Try it now →
!Password Generator
Generate strong, random passwords and memorable passphrases with live entropy and crack-time scoring. Try it now →
!What's in the Frost Rank toolkit
The tools above fall into a few groups. Structured data and on-page tools like the JSON-LD Schema Generator and Meta / OG Tag Generator help you ship the markup search engines and social platforms actually read. Technical SEO tools — the Robots.txt / Sitemap Validator, Redirect Chain Checker and HTTP Header Checker among them — catch the crawl-blocking and indexing mistakes that don't show up until Google finds them first. The rest are general developer utilities (JSON formatting, Base64 encoding, HTML inspection) that come up constantly in the same workflows, so they live here instead of scattered across five different sites.
Every live tool is free with no signup and, with one documented exception noted in the FAQ below, runs entirely client-side — nothing you paste or upload is sent to a server. New tools are added as they're finished; a tool marked "coming soon" in the nav isn't listed on this page yet because it isn't done, not because it's hidden behind a paywall.
Frequently asked questions
Yes — every tool listed here is free with no signup, no trial limits, and no paywalls.
No. Every tool works the moment you open it — no signup, no login, no email required.
No, with one documented exception. Every tool runs entirely in your browser by default. The Robots.txt / Sitemap Validator's optional "Fetch & check" button routes through Frost Rank's server only to work around browser CORS restrictions that block most direct requests — nothing fetched that way is stored or logged. Full details are in the Privacy Policy.
Every tool on this page was built to solve a problem actually hit on a real client site — not a generic wrapper around someone else's API. New tools ship here as they're finished; nothing is listed until it's fully working.