Now, September 2026

I build free, useful web tools.

I'm James, a software engineer who makes tools without the ads and sign-up walls. Here's what I'm working on right now, and a place to send me an idea for the next one.

See what I'm building

What I'm up to

Building now, and recently shipped

Everything here is free to use. Most of it runs on a server I manage myself.

GridPrice

Beta open

Live electricity prices for 33 states, now in beta. A website, a free public price API, and a rebuilt Android app with widgets and price alerts.

Join the beta Try it How I built it

Lately

Beta open

Share the last few hours of photos with one QR code, now in beta. Guests save them at full quality in any browser, iPhone or Android, with no app or account.

Join the beta Try it How I built it

Satellite Area Calculator

Live

Draw and measure areas and distances on satellite imagery, with an AI assistant that takes map commands in plain English. Used by 38,700+ people so far in 2026, over 270 a day.

Try it How I built it

text.compare

LiveOpen source

An ad-free diff tool for text, code, documents, data and images. Everything is compared in your browser, so nothing gets uploaded.

Try it Code How I built it

amceagle.com

Live

A fan site for the AMC Eagle, built around my own 1988 Eagle Wagon: specs for every model year, a VIN decoder, and a car-show print kit.

Try it How I built it

Playlisterr

LiveOpen source

Personalized "watch next" rows in every Plex user's account, picked by a local LLM from titles you already own.

Code How I built it

Your turn

Got an idea for a web tool?

Something you keep searching for and only find buried in ads, paywalls or sign-ups? Tell me about it. No promises, but if it's something I'd use too, I might build it, free for everyone.

Want the longer story, including my day job in GIS and AI? See my full portfolio