Facebook also natively lets you download a copy of all your Facebook data including all the Photos. This is handy if you don’t want to involve any third-party in the process, but you will be bound to download all Facebook data, such as, posts, friends, messages, Videos and Photos, etc. (handy if you need to Delete your Facebook Account)
To download all your Data, click on the Upside down arrow located at the top right corner of the window. From the menu, click on “Settings”.
In General Account Settings, you will see the option of “Download a copy of your Facebook data”, click on it.
On the next page, click on “Start My Archive” and you will be prompted to provide your Facebook password. Enter the password again and click on Submit, you will be again prompted to confirm the Archive, click on “Start My Archive” here and Facebook will start creating your Archive.
This may take some time depending on how much data you have, your archive will be sent to you via email and you can download from there. If you don’t have too much data, you can also just refresh the same page after 2-5 minutes and most probably your archive will be ready to download.
Note: The archived data is compressed, so the Photos downloaded this way will also be compressed. The quality of the photos might be affected in the process.
It will be in .zip format and when extracted, you will see a separate “Photos” folder with separate folders inside it for each Album.