
ClickVolt
AI-powered URL safety scanner with 3 free dev tools
Hey IH! 👋
I'm a solo developer from Seoul, South Korea. I've been building micro-SaaS products — started by going door-to-door pitching QR review tools to restaurant owners. Now I'm going global.
## What I built
ClickVolt (https://clickvolt.app) — an AI-powered URL safety scanner.
Paste any link → get a safety score (0-100), AI summary of what the page does, and a safe wrapped link you can share.
## The twist: 3 free dev tools
Along the way, I built 3 developer tools that are 100% free, no signup, no limits:
1. Repo vs Repo — Compare any two GitHub repos side by side (stars, commits, releases, languages). Pre-loaded with React vs Vue, Next.js vs Remix, etc.
2. Repo Radar — Browse popular open source tools across 20 categories.
3. Deploy Checker — Enter any URL, get a production readiness audit (SSL, SEO, OG tags, performance).
## Numbers (keeping it real)
- Revenue: $0
- Users: basically just me
- Tech: Next.js 16, Supabase, Vercel, Claude API
- Cost: ~$15/mo (domain + minimal API usage)
## What I learned
Free tools that solve small everyday problems are the best marketing for your main product. I use my own dev tools more than the scanner itself.
Would love feedback — what would make you actually use these tools?
About
I was tired of wondering if links in texts and emails were safe to click. Built ClickVolt to scan any URL instantly with AI and share verified safe links. Added 3 free dev tools along the way because I needed them myself

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