I Built 50+ Free SEO Tools in 1 Week - Here's What I Learned

I spent the last week building HeadlineBoost - a suite of 60+ completely free SEO and developer tools.

No signup walls. No credit cards. Just tools that work.

🔗 Try it: https://www.headlineboost.online/tools

Why I Built This

I was tired of:

• Paying $50/month for simple tools
• Signup walls for basic features
• Tools that don't actually work
• "Free" trials that require credit cards

So I built my own suite.

Tech Stack

• Framework: Next.js 15 with App Router
• Language: TypeScript
• UI: Tailwind CSS + shadcn/ui
• Runtime: Node.js (for DNS, SSL, WHOIS)
• Deployment: Vercel (Edge runtime)
• AI: OpenAI GPT-4o-mini

What I Learned
SEO content matters: Added 2500+ words per tool page
Real data wins: Users prefer actual DNS queries over simulated data
No signup = more users: Removing barriers increased usage
Educational content ranks: Google loves comprehensive guides
Tools Built (60+)
SEO:

Headline analyzer with AI
Schema generators
Meta tag generators
Canonical tag validator
Technical:

SSL certificate checker
DNS lookup
WHOIS lookup
HTTP headers checker
Developer:

JSON formatter
RegEx tester
Base64 encoder
Hash generator
Network:

Port scanner
Subdomain finder
Ping test
IP geolocation

Feedback Welcome
What features should I add? What's missing?

Try it: https://www.headlineboost.online/tools

Happy to answer technical questions!