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Hey, I'm Alex

Software Engineer • Denver, CO • Diary-style health tracking

Why I Built This

So here's the thing. I'm 28, I write code for a living, and I sit at a desk about 10 hours a day. Not exactly the active lifestyle my doctor keeps hinting at.

I tried the fancy apps. You know the ones — they want your email, they want you to create an account, they want to sync with your smartwatch, they want to sell you a premium subscription to see your own data. And then they send you push notifications at 9 PM about "staying hydrated." I don't need that kind of energy in my life.

I just wanted something simple. Type in my weight. See a chart. Know if I'm trending up or down. No accounts, no cloud, no notifications, no "engagement metrics." Just me and my numbers.

What This Actually Is

my-bmi.net is a single-page tool that stores everything in your browser's localStorage. That means:

  • Your data never leaves your computer
  • No account needed
  • No cookies tracking you across the internet
  • It works offline once loaded
  • You can export your data as CSV anytime

The downside? If you clear your browser data, your logs disappear. So export regularly if you care about the history. I export mine every month. Takes 2 seconds.

My Own Numbers (Being Transparent)

I'm not going to pretend I'm some fitness guru. I'm a software engineer who likes pizza and occasionally remembers to go for a walk.

Current stats: 5'10", 176 lbs, BMI 25.3. Technically "overweight" by BMI, but my waist is 33 inches and I can run a 5K without dying, so I'm not stressing about it. The trend matters more than the snapshot.

I log my weight every Saturday morning, same conditions. The chart helps me see whether I'm drifting upward (which happens when work gets busy and I order too much takeout) or holding steady. That's it. No grand fitness journey. Just data.

The Journal

I write about what I'm learning, what I'm struggling with, and what tools I'm trying. It's not medical advice — I'm not a doctor, I'm a guy who writes Python scripts and sometimes goes to the gym.

If you want clinical-grade health analysis, go to bmitool.org — it's run by an actual doctor (Dr. Chen, who I met online and convinced to let me link to his site). If you want a personal diary of someone figuring it out as they go, stay here.

Contact

Found a bug? Want to suggest a feature? Email me: hello@my-bmi.net

I read every email. I don't always respond quickly because, you know, day job. But I do read them.