How to migrate photos from Picasa to Google Photos?

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Migrate is not a correct term in this case. Google refers to it as “switching,” because that’s exactly how you have to think about it. To start using Google Photos, simply download the Google Photos Backup tool, tell it where to look for your photos, and then let it do its thing. It will take hours (or days) for all of your photos to make it to the cloud, but it happens in the background and doesn’t require any intervention on your part. It’s entirely effortless.


Upon switching, Google Photos users get an unlimited amount of room on its servers as long as your photos are under 16 megapixels in size, the compression that Photos performs is virtually unnoticeable. Users can opt to choose the uncompressed option, which lets you upload RAW files without any alterations. This option is not unlimited, though. It will eat into your total amount of available storage for your Google account and may get you buy extra storage space. 

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