If you've ever wondered why your Instagram profile picture is so tiny, you might be interested to learn an easy way to make it bigger. You can do this by copying your Instagram account username and visiting the Thumbtube website. This will grab your profile picture in high resolution and display it in just a few seconds.
If you don't follow other people in the app, you can enlarge their profile pictures. However, you can download profile pictures manually by visiting the website and clicking the Download button. You can also enlarge your profile picture by long showing yourself.