Build cross-platform desktop apps with JavaScript, HTML, and CSS

Emscripten: An LLVM-to-WebAssembly Compiler

Watches files and records, or triggers actions, when they change.

QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)

A NodeJS library to keep an eye on your memory usage, and discover and isolate leaks.

OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi/Linux Devices

node bindings for the v8 profiler

Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB

Publicly-released sketches for the Arduino microprocessor

Node.js bindings for GDAL (Geospatial Data Abstraction Library)

OpenOrienteering Mapper is a software for creating maps for the orienteering sport.

openambit

A Wiring Library to produce square wave tones on arbitrary pins.

Electronic timing system for orienteering and similar outdoor sports events on Arduino

Open timing control for sports (orienteering, trekking etc) based on Arduino, RTC DS3231 RTC and MRFC522 RFID

libphutil is a collection of utility classes for PHP. Currently an unstable preview release.