Note: Community translations were added to Arduino IDE 2 in version 2.0.0-rc6. You can find the latest version on the Software page.
The original language for the Arduino IDE interface is English, but other languages are available.
Change the language in Preferences
Open Arduino IDE.
Open preferences: Choose File > Preferences in the menu bar for Windows/Linux or Arduino > Preferences for macOS.
Alternatively, use keyboard shortcuts to open the window:
Ctrl + ,for Windows/Linux and
CMD + ,for macOS.
Click the Editor language option and select your desired language.
Click OK to confirm the changes.
Restart the IDE for the changes to take effect.
Change the language by editing preferences.txt
Alternatively, you can edit the
preferences.txt file directly.
Close Arduino IDE.
Edit the value to read
Save the file.
Open Arduino IDE to see the changes.
If only English is available in IDE 2
Community translations were added to Arduino IDE 2 in version 2.0.0-rc6.
You can find the latest version on the Software page.
Some text is not translated
Arduino IDE translations have been made through community contributions, and not all of them are complete. You can see the status of each language at Transifex:
If the language isn’t changing
Make sure you fully restart Arduino IDE.
On macOS, closing all windows will not automatically quit the application. If the Arduino IDE icon is in the Dock with a small dot below it, the app is still running. Right-click on the icon and select Quit to quit the app.