Free SEO and developer tools that run in your browser. No accounts, no paywalls, no upsells.
Stage
Established
Startup
Founded
Not given
2026
Based in
PL
Not given
Pricing model
Freemium
Free
Pricing
Free: scan, score, public report and live badge. Pro: $9 one-time payment per listing (weekly rescans, score history, ready-made llms.txt and robots.txt, fix prompts for every issue). Featured: $20 per month per home page slot.
Not given
Key features
Public reports with detailed findings
Live embeddable badge
AI-generated fix prompts for coding agents
Ready-made llms.txt and robots.txt files (Pro)
Weekly automatic rescans (Pro)
Score drop monitoring and alerts (Pro)
Public score history chart (Pro)
Markdown content negotiation checker
Agent Mesh Protocol checker
Meta / OG Tag Generator with live previews
JSON-LD Schema Generator for structured data
Robots.txt / Sitemap Validator with crawl-blocking detection
Redirect Chain Checker to trace and spot redirect loops
HTTP Header Checker to inspect response and security headers
JSON Formatter & Validator with error highlighting
Base64 Encoder/Decoder for text, images and files
Password Generator with entropy and crack-time scoring
QR Code Generator with custom colors and logo support
Invoice Generator supporting 30 currencies
What makes it different
Score never changes based on payment - Free and Pro use identical scoring rules
Pro is one-time $9 payment with no recurring fees
Detailed scoring breakdown with published rules and specifications
Removal is always free with no conditions required
Site implements its own standards - server-rendered pages, Markdown support, llms.txt, and schema.org data
No signup, accounts or paywalls required
Most tools run entirely in the browser with no data sent to servers
Built from real client SEO work, not generic API wrappers
Tools built on official specs and search engine documentation
Fast browser-based performance with no backend queue
Good for Bots
Frost Rank