The Rogue Marketer

Instagram wasn't designed to post from the Mac desktop to Instagram. However, there is a way to get it done without too much effort.

How to Post on Instagram from Mac

1. Go to Instagram.com using the Safari browser and Login to your account
   
   
2. Open Safari and click Safari (upper left corner of screen) > Preferences > Advanced
   
   
   
   
   
3. Check  "Show Develop Menu in bar"
   
   
   
   
   
   
4. Close this and go to:  Develop (in the top nav) > User Agent > Safari - IOS 10 - iPhone
   
   
   
   
5. The Instagram site will reload or manually refresh the site. 
   
   
6. Click the camera icon on the bottom and a window should open asking you to select the picture you would like to upload to Instagram.  
   
   
7. Review the preview of the image, edit, add a caption and then click Share.