LLM Token Explorer
A browser-based workbench that runs small language models entirely on your device to show tokenization, next-token probabilities, the full token vocabulary, and token-by-token sampling.
Desktop Recommended
Projects
Everything I have catalogued so far. Search, filter, and sort to find what you are looking for.
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Patrick Cowhill — Portfolio
My personal portfolio and professional background.
Browser Video Editor
A browser-based video editing app created and iteratively expanded with an experimental AI-agile team of agents.
Lightsail Demo
A live chat room, collaborative drawing app, and multiplayer bird game created to explore the capabilities of AWS Lightsail.
Nonogram Odyssey
A thousand nonogram picture-logic puzzles arranged in 50 chapters, playable in Classic or Three-Life mode, with progress saved on the device and no backend.
SALVO
A 3D arcade sea-survival game where firing the boat's swivel gun is the only way to move, across ten waves of sea monsters.
Signal Processing Playground
A browser lab for learning digital signal processing: patch modules together on a node canvas, inspect signals with oscilloscope and spectrum instruments, and work through guided lessons and graded challenges.
The Hollow Oath
A party-based isometric CRPG built on the D&D 2024 rules, with turn-based tactical combat, an investigation story set in the fen town of Greyfen, and multiple endings.
Repo Steward
A simulated GitHub-style repository with an AI steward that reacts to issues and pull requests, where a deterministic policy engine decides which proposals run automatically, wait for approval, or are blocked.
Jazz Piano Theory Atlas
An interactive jazz harmony reference of ten lessons whose playable examples show grand-staff notation, chord symbols, and Roman numerals above an animated keyboard, transposable to any key.
Asterism Relay Planning Console (Claude build)
The Claude build of a benchmark task: a deep-space communications planning console for scrubbing a simulated 24-hour mission, inspecting relay links, deploying relays, and scoring the plan against a baseline.
Asterism Relay Network Planning (Codex build)
The Codex build of the same benchmark task: a deep-space communications planning console with a network map, a 24-hour timeline, link inspectors, relay deployment, and baseline comparison.
TicketForge
An engineering ticket intake console that turns a messy user report, a repository brief, and a team template into a structured ticket where every field carries a confidence grade.
GLOAMING
A 3D sheepdog game built with Three.js: play a border collie driving a flock of thirteen sheep down a darkening valley into a stone fold before the wolves arrive.
TERRANE / SUBSTRATA Seismology Observatory
A synthetic seismology observatory: a procedurally generated geological cross-section drawn as an engraved survey plate, where clicking into the earth sends P- and S-waves through the strata and onto drum seismographs.
EARSHOT
A top-down sonar-hunt roguelite played on a phosphor scope where sound is the only light: pinging reveals the cave and its creatures, but every sound you make tells them where you are.
The Chart Room
A procedural drafting engine that plots a complete 19th-century style nautical chart of an invented sea in the browser, layer by layer, from graticule and coastlines to soundings, place names, and cartouche.
Virtual Breadboard Lab
A 3D Arduino-style breadboard simulator with placeable components, jumper wires, a block-programming editor, a serial monitor, a live wiring linter, and four guided labs.
WYRMLIGHT
An arcade game crossing Snake with tower defense: steer a growing serpent whose segments are auto-firing turrets and coil around the last star to survive twelve hours of night.
Hubble Systems Cutaway
An interactive 3D exhibit of the Hubble Space Telescope built around NASA's official model, with subsystem hotspots, cutaway and overlay views, and a guided tour.
Living Orrery
A real-time 3D orrery of an invented star system with orbit lines, an asteroid belt, comets, an adjustable time rate, a cinematic camera mode, and a dossier for each body.
Prompt Gallery
A single-file library of reusable prompt templates for AI tools, organized by category, where each prompt is split into highlighted sections with tooltips explaining what each part does.
Meridian Simulated Banking Platform
A simulated consumer bank with a public website, a customer portal, an internal operations console, and a backend whose ledger derives every balance from append-only entries. The customer site and the operations console are both live as public demos.
The Quiet Hour
A point-and-click escape room set in a friend's study: turn between four walls, inspect and collect objects, and combine clues to work out the door code. All of the artwork is SVG drawn in code.
Claude Chess
A browser chess game against a built-in bot with four difficulty levels, time controls, and the full rules, written from scratch in plain JavaScript with no libraries.
Clef Sheet Music Editor
A browser sheet-music editor in the spirit of MuseScore: enter notes on the staff, add staves with instrument presets, dynamics, and lyrics, and export a vector PDF.
Harvest the Hazard
A top-down strategy game where the spreading fluid is both the enemy and the only fuel: build extractors, relays, blasters, and barriers to harvest deep pools while keeping the flood off the Core.
Patrick Cowhill — Legacy Portfolio
The legacy version of my personal portfolio and professional background.
Harmony Glide
My first iOS project: a simple color-matching game to play on an iPad.
iPad Application
Georgia Tech Showcase
A showcase of my experience studying at GA Tech, the coursework I chose, and some cool projects I had the opportunity to work on.
Qt Template
Sample graphical projects, including a File Editor, a 3D Viewer, a fun Tic Tac Toe game, and an Image Draw app.
DnD Initiative Tracker
A DnD utility for tracking the health, initiative, and status effects of a party of players and the enemies they face.
Phone Recommended
Instrument of the Day
Each day, a different recording is selected, and you have six guesses to identify the instrument.
3D Cube Prototype
A quick prototype implementing perspective 3D projection of a cube onto a 2D plane.
CSS Resume
A challenge to myself to recreate my resume as accurately as possible using only CSS instead of Word for styling.
Out of Date
City Guesser Game
A game of correctly identifying cities in the USA to reveal more of the map and uncover as many cities as possible.
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What the statuses mean
- Active
- Currently being developed or expanded.
- Maintained
- Supported, without substantial active development.
- Paused
- Work stopped for now, with a possible return.
- Complete
- Achieved its original goals or completion criteria. Not deprecated, and it may still receive future improvements.
- Archived
- Deprecated, no longer used, or retained primarily for historical reference, without a maintenance commitment.
Statuses describe development, not whether something is online. Archived projects stay listed here; uncheck "Archived" to hide them.