Changelog
Tools that actually shipped in the catalog. Dates follow the git history of this repo.
Distributed Systems & Network Topology Simulator
Build a topology, inject chaos (partitions, latency, node death), and watch Raft and circuit breakers react. Export Docker Compose, Kubernetes, Mermaid, or PlantUML — all in the browser.
Typography Anatomy & Variable Font Lab
Inspect glyph outlines, metrics, kerning, OpenType features, and variable-font axes. Export @font-face and font-variation-settings CSS.
Pixel Art Sprite Studio
Draw on an 8x8-64x64 grid with palettes, layers, and onion-skin frames. Export PNG, GIF, sprite-sheet atlases, or CSS steps() animations.
Digital Logic Gate & Circuit Simulator
Wire gates, flip-flops, and displays; run a delay-accurate simulation; export truth tables, K-maps, Verilog, VHDL, and SVG schematics.
2D Fluid Dynamics & Particle Physics Sandbox
Navier-Stokes dye/velocity paint plus a Verlet particle engine. Export Matter.js, PixiJS, or a standalone Canvas snippet.
GLSL Shader Art & Visual FX Playground
Live WebGL2 fragment shaders with Shadertoy uniforms, a preset gallery, and export to Three.js, R3F, or a single-file HTML page.
Web Audio Modular Synthesizer & Sound FX Generator
Oscillators, ADSR, filter, LFO, and an effects chain with a playable keyboard. Export WAV or dependency-free Web Audio code.
Cellular Automata Studio
Life, Wireworld, Langton's Ant, Wolfram elementary automata, and more. RLE import/export, GIF recording, and bit-packed matrix exports.
Algorithm Arena & Data Structure Visualizer
Sorting races, pathfinding on mazes, and step-through BST/AVL/heap/trie operations with Big-O tables and reference implementations.
Interactive RegEx Railroad & DFA/NFA Stepper
Railroad diagrams, Thompson NFA/DFA graphs, backtracking stepper, and a ReDoS risk score — all local to your browser.
Scientific & Engineering Calculator
Six modes: precision arithmetic, notebook, 2D plots, matrices, statistics, and engineering units. 64-digit decimal.js, no eval().