Przemoc's protip (2017-08): Improve the way you upload photos to Instagram
Tired of sending photos to your phone just to share them on Instagram?
I would be too! Just use Google Chrome and visit instagram.com on your desktop PC/Mac. Yes, no need for 3rd party Instagram clients!
Go to Developer Tools (F12 or Ctrl+Shift+I), toggle device toolbar (Ctrl+Shift+M) and choose the screen to emulate or Responsive.