🌈 React for interactive command-line apps

A terminal emulator for the 21st century.

Run compilers interactively from your web browser and interact with the assembly

🎉 create a single executable out of your node.js apps

Browser-based frontend to gdb (gnu debugger). Add breakpoints, view the stack, visualize data structures, and more in C, C++, Go, Rust, and Fortran. Run gdbgui from the terminal and a new tab will …

A modular geospatial engine written in JavaScript and TypeScript

🔬 A fast, interactive web-based viewer for performance profiles.

TypeScript Compiler API wrapper for static analysis and programmatic code changes.

ReactJS Maps without external dependencies

BrowserFS is an in-browser filesystem that emulates the Node JS filesystem API and supports storing and retrieving files from various backends.

Draw perfect arrows between points and shapes.

🖱️ Generate human-like mouse movements with puppeteer or on any 2D plane

Glisp is a Lisp-based design tool that combines generative approaches with traditional design methods, empowering artists to discover new forms of expression.

A tiny (~1.7 KB gzipped) spring physics micro-library that models a damped harmonic oscillator.

Converting HEIF/HEIF image formats to PNG/GIF/JPEG in the browser

Enter a SVG path data to visualize it and discover all its different commands

Sales & Dungeons — Thermal Printer as D&D / TTRPG Utility

Simple OOP javaScript library to solve linear programs, and mixed integer linear programs

Purely functional reactive programming library

Keep your place when jumping between a different parts of your code. This is a vscode extension that will highlight lines as you edit them, fading as you move away.

Snapshots a web page to get it as a static, self-contained HTML document.

Model a water distribution network in JavaScript using the OWA-EPANET engine

A 99-player last-bird-flapping battle royale

A browser-based SPICE circuit simulator

Curve matching using Fréchet distance and Procrustes analysis in JS

A graphics library to enable the real-time rendering of 2D signed distance fields on the web.

Placebo, a beautiful new language agnostic diagnostics printer! It won't solve your problems, but you will feel better about them.

This is a fork of JS-YAML which supports parsing of YAML into AST

Javascript port of the S2 Geometry library for the browser & nodejs

Web App for Bluetooth “Kitty Printers”! Print text, pictures, and much more in the future.