e2 studio

e2 studio screenshots

e² studio is a complete development and debug environment
e2 studio 4.2 : Main Window

Alternative downloads

Atmel Studio
7.0.5940
FREE
Integrated development platform for Atmel microcontrollers.
AVR Studio
5.1.208
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Powerful tool designed for programming microcontrollers.
MicroCode Studio
5.0.0.5
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It is a visual IDE with In Circuit Debugging (ICD) capability.