Active
Exonians in Japan
Built in 1.5 Hours
A community platform connecting Exeter alumni in Japan. Rapid prototype showcasing speed and execution.
Hiro Kuwana
Building AI tools to augment humanity
Let's TalkTraction · last 3 months · 100% organic
- 1M+
- Organic impressions · 3 months
- 3K+
- Clicks · All organic
- 1,000+
- Monthly signups · Kaiwa
- 40%
- Email open rate · 300+ sent
One million organic impressions, three thousand clicks, one thousand monthly Kaiwa signups, forty percent email open rate over three months — solo, zero ad spend.
What I'm Building
Kaiwa
Current Focus
Language Learning, Reimagined
Practice languages through bite-sized AI conversations. Real-time translations, social streaks, and 30-second daily sessions.
Visit Kaiwa
Sunset
Flybyrd
AI for Venture Capital
Helped VCs discover and analyze startups with AI-powered deal flow analysis. Sunset to focus on new opportunities.
Sunset
Pebblr
Connecting Nonprofits
Connected nonprofits with younger donors. Sunset after GPT technologies offered more scalable solutions.
The Story
Born in Japan, raised in the U.S. I've lived across Spain, Estonia, and beyond. This global perspective shapes everything I build.
After studying Environmental Engineering at Brown, I discovered my real passion: making powerful tools accessible to everyone.
I believe AI should be humanity's great equalizer: the tutors, advisors, and assistants once reserved for the privileged few should be available to all.
"AI as the glider for everyone's mind."
AI Consulting
I help non-technical founders and executives use AI that actually works — not AI that looks impressive in a demo.
01
Workflow audit
One call. I find the three processes draining your week and show you exactly what to automate first.
02
Build-with-you
A week embedded with your team, shipping one real automation end-to-end. You keep the code, the playbook, and the confidence to ship the next one.
03
Advisory
Monthly check-ins on tooling, agent architecture, and stack choices. For founders and executives who want a brain on call, not a slide deck.
Tools & Experiments
One-off utilities and side projects I've built. Feel free to use them.
ICS Validator & Fixer
Paste or upload any .ics calendar file. Auto-fixes missing timezones, UIDs, line folding, and other issues. Includes a weekly calendar preview with timezone conversion.
Try it out
VCF File Splitter
Upload a .vcf file with multiple contacts and split it into individual vCard files. Download as a ZIP for easy iPhone/Android import.
Try it out
Frequently Asked Questions
Questions I get asked more than I'd like.
Will AI take over the world?
No. But I do worry about how it will either force us to sharpen our critical thinking or make us complacent. In many ways, it's like Up or Brave New World. The question isn't whether AI will control us, but whether we'll choose comfort over growth.
Is Japan perfect? Do you watch anime?
No, Japan is not a perfect country without flaws. And yes, I watch anime. Cowboy Bebop and Paprika are masterpieces. I will die on this hill.
Coffee or tea?
Tea. Green tea specifically. And I'm willing to change your mind on this; most green tea in the US is awful (cough cough Lipton). Try the real stuff and we'll talk.
Wait, you studied Environmental Engineering?
Yes. My advisor once said, "Now that you have a degree, I'm honestly surprised you became an engineer." I also did conservation work in Maui helping maintain Waikamoi Preserve (one of the wettest places in the world). Somehow it stayed that way even with my dry humor.
Tell me something weird about you
- I can snap on any surface. Tables, walls, my own face. It's a gift.
- I beat Total War: Shogun 2 on Legendary as the Tsu faction (the independent republic). If you know, you know.
- I send postcards to friends around the world. DM me your address, I'm serious.
- My dream is to make enough friends globally that I always have a couch to crash on.
- I can only count to three the German way. My hands physically refuse to do it any other way.
Are you funny?
I grew up in the US of A. I don't have a sense of humour. Please don't sue me.
What's a hill you will die on?
Cowboy Bebop and Paprika are masterpieces, no debate. Also, if you're anywhere from your late teens through your early thirties, you absolutely must read The Brothers Karamazov. It will change how you see the world.
Thanks for reading this far.
If you're building with AI and want another brain on it, let's talk. Or subscribe below and I'll send the next essay when it's ready.
Book 15 minutes