Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
MINIBLOQ - miniBloq is an open source graphical programming environment for Multiplo™, Arduino™, physical computing devices and robots.
embedXcode - embedXcode is a template for Xcode.
Visuino - Visuino is a visual programming environment that lets you write programs from Arduino circuit boards.
InstaPart - Build circuit boards faster with parts delivered in <24 hrs
ArduBlock - ArduBlock is a graphical programming language plugin specifically made for Arduino circuits and controllers.