There are many sites that provide free storage for your photos. Not only do many allow you a place to store your photos but many let you print photos and have them mailed to you or pick them up locally. Other options are the ability to edit photos online before printing and share selected photos with friends and family. Since they are free I would recommend you keep photo’s on more than one site for protection in case something happens.
Some of the best known are:
Apple iCloud www.icloud.com - free but limited to 5GB of photos
Dropbox www.dropbox.com - free but uses your 2 GB of free storage. You can get more storage through referrals or you can pay for more storage.
Amazon Photos www.amazon.com - free unlimited photo storage but must have Amazon Prime
Google Photos www.google.com/photos – free but photo resolution limited to 16 megapixels. Options for higher resolution storage for a fee.
Shutterfly www.shutterfly.com – free unlimited photo storage. Note that once uploaded you can only download a 2 megapixel file so you may want to make sure and keep a copy elsewhere.
See the related articles for more details and other sites.