If we want to change the display language of Power Apps Studio and to
change the language of the designer, it may not be obvious how to do
How NOT to change the language
First, let's take a look at how not to do this. App builders may intuitively attempt to do this by opening the settings in the Maker portal, and choosing the menu item to "change your language".
This opens the "Language and Region" section in the Microsoft 365 settings area, which provides the option to change the display language.
However, the display language that we apply here has no impact on Power Apps. Instead, it applies only to the display language of Microsoft 365 apps, such as SharePoint, Outlook, and Word/Excel/PowerPoint online.
The correct way to change the display language
The language of the web browser controls the display language that Power Apps uses. If we were using Chrome, we can change the language by opening the settings, and carrying out a search on the term "languages". Alternatively, the link beneath will open the relevant area in the Chrome settings.
With the Chromium version of Microsoft Edge, the following link will open the relevant area in the browser settings.
For other browsers, we would use the corresponding browser settings to change the display language.
Once we modify the language of the browser, the designer will open in the target language when we next open Power Apps studio. The screenshot beneath shows the appearance of the designer with the Chrome languge set to Spanish.