I built 8 completely free online tools using only AI (Claude), without writing a single line of code. All of them are live, free, and ad-free.
Here's every tool and what it does:
1. LivePhotoKit — Photo Editor Toolkit
Resize, compress, convert, and edit images right in your browser. No upload to any server — everything stays on your device.
2. iWorkViewer — Apple iWork File Viewer
Open Pages, Numbers, and Keynote files on Windows or any device. No Apple device needed.
3. PlantingCalendar — Vegetable Planting Calendar
Find the best planting dates for your location. 289 indexed pages covering multiple zones.
4. FreeTDEE — Calorie & TDEE Calculator
Calculate your daily calorie needs, macros, and track fitness goals. Clean, no-signup interface.
5. BabyPercent — Baby Growth Percentile Tracker
Track your baby's growth against WHO standards. Free and private.
6. InvoicePad — Free Invoice Generator
Create professional invoices in seconds. Download as PDF instantly. No registration needed.
7. ZonePlan — Time Zone Planner
Plan meetings across time zones without the headache.
8. PupVax — Puppy Vaccination Schedule
Keep track of your puppy's vaccination timeline. Simple and free.
How I Built Them
- Stack: Next.js static sites deployed on Cloudflare Pages
- AI Tool: Claude (Anthropic) for all code generation
- Cost: $0/month hosting (Cloudflare free tier)
- Time: ~2-3 hours per tool from idea to live
The key wasn't learning to code — it was learning to describe exactly what I wanted to the AI.
What I Learned
- Content > Features: Google doesn't care about your features if you have no content. My sites went from <200 words to 2000-4000 words each.
- SEO is slow: All 8 sites combined get ~32 clicks/week from Google after 4 months. It takes time.
- One tool per niche: Don't build a Swiss Army knife. Build one thing that does one job perfectly.
All tools are 100% free. No signup. No ads (yet — AdSense pending).
What free tool would you build first?
Top comments (1)
The most useful lesson here is not that Claude can generate code, but that scope discipline makes AI-built tools shippable: LivePhotoKit staying local in the browser and iWorkViewer solving one awkward file-viewing problem are clearer bets than a giant utilities site. The 32 Google clicks per week after four months is also a good reality check; distribution is the actual product work after the first deploy. For founders, I'd treat each tiny tool as a search-intent experiment with its own maintenance budget, because even a static Next.js site on Cloudflare has correctness, privacy, and trust costs once people depend on it.