This tutorial will teach you how to download Instagram photos to your computer. While the social network doesn't offer the ability to download photos, there's a simple workaround that uses Google Chrome's DevTools to retrieve full-size images from the social network.
Download Instagram Photos with Google Chrome
Open Google Chrome, sign in to Instagram and browse for the desired photo(s). Once found, click the Customize and Control Google Chrome menu (small button with three horizontal stripes) and select More Tools > Developer Tools.
Next, go to Resources > Frames > Instagram.com > Images and search for the photo(s) you want to download:
Right-click on the photo and select Open in a new tab. The selected photo will open in a new browser tab. Right-click on the photo and select Save As to download it to your computer.