.INO File Extension
File TypeArduino Sketch File
What is an INO file?
An INO file is a software program created with Arduino, an open-source electronics prototyping platform. It contains source code written in the Arduino programming language. INO files are used for controlling an Arduino circuit board.
Arduino programs can be used to perform basic commands, such as making an LED blink, or complex functions, such as transmitting data over the Internet. Different Arduino boards are available for specific applications.
NOTE: Arduino 1.0 saves sketch files with the .ino extension (derived from the last three letters of "Arduino"). Previous versions of the software saved sketches with a .PDE extension.
How do I open an INO file?
Because INO files are saved as plain text, you can open them in any text editor, including:
You can also, of course, open INO files in Arudino.