You can use any desktop or mobile internet browser.

You can get a link sent to your email address, and download it to your local storage. Alternatively, you can automatically get the pictures uploaded to Drive, Dropbox, OneDrive or Box cloud. Optionally, you can play with some other settings here to schedule automatic archive downloads, change the compression file type to TGZ, or change the maximum file size for each archival package.

This will download a ZIP file to your computer. If you’re prompted, select a saving location. Alternatively, click the download link from your mailbox. You’ll receive an automated email with a download link when your archive is ready.

Your photos may be backed up automatically depending on the settings you have enabled. If you’re not sure how to enable backups in Google Photos, make sure to check out this article for iOS and this article for Android.

Your backup will not be deleted from the cloud when you download a picture. If you don’t want to use Google Takeout or Google Photos, you can always use the iCloud backup if you use Apple products.