DC · 13 years · small cohorts · real code

Build real things.
Learn
real code.

Small classes. Multi-year progressions. Congressional App Challenge winners. Apps in the Apple Store. We teach middle and high schoolers to build the web — for real.

13+
Years Teaching
15+
Courses Built
4:1
Student–Teacher Ratio
🏆
Congressional App Winners

HTML, CSS & JavaScript from day one
Full-stack web apps · PHP + MySQL
Python & Data Science track
NEW: Coding with AI Tools
Congressional App Challenge prep

"

To actually learn how to think. I think everyone in this country should learn to program a computer. Everyone should learn a computer language because it teaches you how to think.

— Steve Jobs, 1996

This is the idea at the heart of every LabCats class — and yes, some of our
students have used it in their college essays.

// current offerings

Three ways to learn with us

Every class is small by design — real attention, real feedback, real progress.

Ongoing · Space Available

Make Your Own Web App

High school students build a full-stack web application from scratch — HTML, CSS, JavaScript front end and PHP & MySQL back end. The final goal: enter the Congressional App Challenge.

Grades High School
When Fridays 4–5:30pm
Format Online · Small cohort
Prereq Some coding experience
$500

per 10-session course

Check availability

Summer 2026 · New

Summer Intensive: Build Your First App

Five days online, three hours a day. Walk in knowing nothing about code. Walk out with a working web app you built yourself — HTML, CSS, and JavaScript from scratch.

Grades 7th-11th
When Summer 2026 TBD
Format Online · Max 8 students
Prereq None
$600

per 5-day intensive

Join the waitlist

Summer 2026 · New

Coding in the Age of AI

For returning LabCats and college students who already know the basics. Learn to use Claude Code, Cursor, and GitHub Copilot alongside real full-stack skills. Build faster, ship more, understand what AI is actually doing.

Grades College-age/alumni
When Summer 2026 TBD
Format 6 2 hour long Sessions
Prereq HTML/CSS/JS/PHP Foundation
$600

per 5-session cohort

Express Interest 

// BUILT BY OUR STUDENTS

Real apps. Real code. Real kids.

These aren't tutorial projects — students dream them up and build them themselves.

📖
The Zhi Book

Chinese-learning app built with a Wilson HS student, based on a real teacher's curriculum. Used by real students.

PHP · MySQL · HTML/CSS
Mountain Mapping

Search every ski mountain in North America by skill level and style. Full database app with custom queries.

PHP · MySQL · API
🥾
HikerHunt

Generates a personalized scavenger hunt for kids on the trail — with points, fun facts, and a leaderboard by park location.

PHP · MySQL · Geolocation
👕
Closet Shuffle

Generates outfits based on weather, activity, and color preferences — a fully functional recommendation engine.

PHP · MySQL · JavaScript
🗣️
Flow Bros

A tournament tool for debaters to share and search opponent notes. Features team privacy controls and a searchable flows database.

PHP · MySQL · HTML/CSS
🥏
Ultimate: The Guide

Rules, tutorials, and a chat feature for Ultimate Frisbee players.

Full-stack · Chat feature
🎁
Gift Generator

Enter a recipient's age, interests, and budget to get personalized
gift ideas — with lists, occasion tracking, and a Secret Santa feature.

PHP · MySQL · Search Algorithm
💪
MVP Workout

Pick your muscle groups and available equipment — get a custom workout. Save, rate, and log sessions, then share routines via email or text.

PHP · MySQL · Tagged Exercise DB
// THE JOURNEY

A Path That Goes Somewhere

Most students stay for years — each course unlocks the next. Here's the web development path.

1
HTML & CSS Basics
2
JavaScript Essentials
3
JS Games & Phaser 3
4
PHP & Databases
5
Basics of Web Apps
Make Your Own App
AI
Coding with AI Tools
// FROM OUR FAMILIES

What students & parents say

★★★★★

"My son has loved Mettler's coding classes. He appreciates that Elizabeth is able to structure classes to a student's particular pace and abilities, while still having all the kids work together. He already has two Apps in the Apple store."

Parent

LabCats family, multiple years

★★★★★

"I have taken this class since I was in 4th grade. I'm a sophomore in high school now. Coding is hard to learn, but as a Lab Cat, I have found coding much more comprehensive. I'm currently making an app...so I should get back to that!"

Hadley C.

LabCats student since 4th grade

★★★★★

My girls have taken classes with LabCatsCoding for a couple of years. They really enjoy it and have been learning a lot. My older daughter and other LabCats kids even won a coding competition sponsored by Facebook.

Jennifer L.

Parent, two students

// WHY LABCATS?

The name has a story

When Elizabeth started teaching coding, her first class became her guinea pigs — helping her road-test new courses and techniques as she built the curriculum. LabRats, basically.

Except she teaches from home. And there are three cats who have always had opinions about class.

The name stuck. LabCatsCoding has been running for over 13 years, and a lot of those original lab rats — now in college — are still coming back.

// LET'S TALK

Ready to start Coding?
You're in the right place.

Whether you're a complete beginner or a returning LabCat ready for the AI track — drop us a line and we'll find the right fit.