Google Photos backs up your pictures and videos online. However, to save your moments in the event of an accident or to free up space in the cloud, you should back up your Google Photos library locally. See how you can do this with Google's export tool, Takeout.
Visit the Google site Takeout and sign in to your Google Account. Click the "Deselect All" button to export only your media from Google Photos excluding information from other Google services.
Scroll down to find "Google Photos" and select the box next to it.
With "All Photo Albums Included", you can select which albums you want to export. By default, Takeout backs up all your albums.
The "Multiple Formats" button tells you in what format your photos and videos will be exported.
Click the "Next Step" button at the bottom of the page.
Here, Google lets you personalize some aspects of the backup process. You can choose whether Google wants to store your file in the cloud storage you want or send it via email, ask Google to automatically export your photo data every two months and specify its type and size file.
Click "Create Export" as soon as you customize the export.
Google will start creating a copy of your library. Depending on the number of photos and videos you have in the albums you have selected, this can take hours or even days. You can cancel it with the "Cancel Export" button.
When done, Google will send you an email with the subject line "Your Google data is ready to download". Click the "Download Your Files" button in this email to go to the download page of the archive file. Sign in again with your Google Account for confirmation.
The download of the file should start as soon as you reach the following page "Manage Your Exports". If not, select "Download" next to entry export photos to the list. Note that this o download link expires within a week.
There are two ways to explore what was taken file. You can either open the “archive_browser.html” document to browse the library from a custom web application to a Browser or view each photo file or video separately from the "Google Photos" folder.