It makes coding for Arduino easier for people used to Visual Studio IDE.
Simulator for Arduino is the most full featured Arduino Simulator available.
Arduino UNO Uploader Tool is an open source application for uploading .hex file.
You can manage your Arduino BOARDS.TXT and PROGRAMMERS.TXT files.
The arduino create agent is a single binary that reads from a config file.
PROGRAMINO IDE for Arduino is a professional development environment.
Arduino Simulator is designed to test a program quickly with the Arduino UNO.
Create innovative application using Arduino programming environment.
Combines Skype/Arduino to stream live video with remote pan and tilt capability.
Pinguino Developement Team
Pinguino is an Arduino-like electronics prototyping platform.
Blue Leaf Software Limited
MegunoLink is a free tool for talking to Arduino microcontrollers.
MariaMole is an open-source development environment for Arduino.
You can control hardware interfaces like the Arduino, SimAxe, SCN5 actuators.
Number Eight Innovation
A user interface and development tool for Arduino and other microcontrollers.
Program and control the mOwayduino robot using Arduino IDE or Scratch.
Allows you to program Arduino boards in Ladder and STL languages.