The original language for the Arduino IDE interface is English, but other languages are available.
Change the language in Preferences
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Open Arduino IDE.
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Open preferences: Choose File > Preferences in the menu bar for Windows/Linux, or Arduino IDE > Settings for macOS.
Alternatively, use keyboard shortcuts to open the window: Ctrl + , for Windows/Linux and ⌘ + , for macOS.
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Click the Language option and select your desired language.
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Click OK to confirm the changes.
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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.
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Close Arduino IDE.
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Open
preferences.txt. -
Find the
editor.languages.currentline. -
Edit the value to read
editor.languages.current=en. -
Save the file.
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Open Arduino IDE to see the changes.
Troubleshooting
If 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:
Note
Some messages printed in the “Output” view are generated by 3rd party compilation and upload tools (e.g. AVRDUDE) and modifying the language preferences in Arduino IDE will not affect these.
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.
