Everything in the catalog

Web app for building and hearing chords from a root and chord type.

Browser tool for drawing beams, frames and trusses, applying loads and viewing N, V, M diagrams and deflection.

Frontend-only speedcubing timer with scrambles and solve statistics, no server required.

Fast solver for classic and many variant sudoku with constraint entry and grids up to sixteen by sixteen.

Generates a Tailwind-style color scale from a base color.

Chord naming app for guitar that identifies chromatic polyphony from notes you enter.

Technical ear training exercises aimed at audio work, from an open-source project.

Word game of highs and lows where you try to outsmart the alphabet.

Physics-based dice roller for D&D, Warhammer and other tabletop games that handles many dice at once.

Open-source invoice maker that needs no signup and produces a PDF in seconds.

Prepares Polish PIT-38 tax figures for foreign stock trades from broker exports.

Interactive playground for designing and downloading stylized SVG QR codes.

Word game where words dwindle down to the shortest possible form.

Interactive online 3D dice roller with a modified implementation of a classic dice physics engine.

Easy HTML5 tool for writing choose-your-own-adventure stories that can be played in the browser.

Password generator built with WebAssembly that can run in the browser.

Eight-puzzle sliding tile game on a three by three grid, built in the browser.

Estimates collision odds for Nano ID given alphabet size, id length and generation speed.

Edit Humdrum music data and see it engraved as notation in the browser.

Chinese-language tool for making wedding invitation cards in batch by filling in variables such as guest names.

Local-first PWA that combines habit tracking, tasks, finance, journaling and workout logs in one place.

Step sequencer that turns Conway's Game of Life patterns into music.

Drag-and-drop block coding for Arduino with a simulator for the circuit.

Progressive web app tracker for composing music for the SAA1099 sound chip.