Homebase

A calmer new tab, built exactly the way you want it.

Browser Extension Chrome & Safari JavaScript

A browser extension that replaces your new tab with something quieter. A big clock in the font and size you choose, your links and tasks dragged into whichever corners you like, plus a timer, notes, countdowns and weather — each one switched on or off as you please. A fresh photo every day from an openly licensed library, no account or API key needed. Search looks at your own tasks and links before it looks at the web, and everything stays on your device.

TerraMarker

Custom maps for your land. Map it your way.

iOS App Swift MapKit On the App Store

Turns your phone into a mapping tool for your property, hunting lease, or farm. Drop waypoints with 150+ icons, draw trails, fences, boundaries and food plots over satellite or topo imagery, and record GPS tracks as you walk. Instant acreage and distance measurements, full offline map downloads, and print-ready PDF exports with a legend, north arrow and scale bar. No account — the maps stay on the phone.

Bugstorm

A learn-to-code adventure game, playable right in the browser.

Game JavaScript Canvas Play free

A browser game that teaches programming basics to kids by turning them into puzzles. Players write small snippets of logic to fend off waves of bugs, picking up loops, conditionals and sequencing without ever opening a code editor. Built from scratch in vanilla JavaScript — no install, no account, just load the page and play.

PMG Dating

The missionary framework, built for finding an eternal companion.

iOS App Swift SwiftUI

Built by an RM, for RMs. PMG Dating takes the goal-tracking structure missionaries already know — weekly planning, a people pipeline, a map, a calendar — and applies it to dating. Set weekly targets, manage everyone you're seeing by status, plan dates on a calendar, and pin venues on a satellite map. Everything stays on the phone. No account, no cloud, no algorithm.

Plate Calculator

Stop doing plate math. Load the right weight every time.

iOS App Swift On the App Store

Tap to build a barbell load, or enter a target weight and get told exactly which plates to put on. Supports LB and KG, Build and Reverse modes, multiple bar weights, and light and dark mode. Clean visuals, a per-side breakdown, and zero mental math — built for lifters who'd rather lift than calculate.

FitnessTracker

Training and nutrition tools built for consistency.

iOS & watchOS Swift HealthKit Firebase 200+ downloads

My first shipped iOS app, and still the biggest one. Track workouts, log lifts, monitor progress photos and body measurements, and plan structured programs with built-in analytics. Includes nutrition tracking, habit streaks, smart reminders, strength standards and practical calculators like plate loading and goal planning — plus an Apple Watch companion. Built in Swift with a Firebase backend and HealthKit integration, released through App Store Connect, and grown past 200 downloads with Meta app-install campaigns I ran and budgeted myself.

marcusdwilliams.com

This site — hand-built, no page builder.

Website HTML / CSS / JS Apache

My personal site, written by hand rather than dropped into a template builder. Includes a full light/dark theming system, clean URLs via Apache rewrites, app landing and privacy pages for every product I ship, and this portfolio feed. Every app I release gets its own marketing page here, which keeps App Store review support links pointing at something I control.

Built the company website from scratch in HTML, CSS and JavaScript, then took on hosting and maintenance as the only developer. Rebuilt the product pages, site copy and imagery in Photoshop, growing online inquiries by 50%, and have shipped five major site updates — turning the owner's requests into live changes.

An ongoing design-and-build project: a functional living space inside a retired ambulance. Layout, storage and finishes designed from scratch, plus the electrical system — battery bank, solar, inverter — insulation and comfort systems. Cabinetry, seating and custom furniture built by hand, with Fusion 360 and 3D printing used to make the brackets and components that don't exist off the shelf.

Alongside leading crews of 12+ on pickleball, tennis and multi-sport court installations, I rebuilt and maintained sections of the company website — improving customer retention and streamlining how inbound job requests come in.