Gramblr is a basic Instagram assistant which enables you to upload images to Instagram from your Windows desktop.
Getting started with Gramblr involves logging in to your Instagram account with the correct credentials.
The main interface of Gramblr couldn’t be more simple: Select single photos that you want to upload. The images should be in JPEG format _and_ be square! You can only upload one image at a time unfortunately.
Once you’ve uploaded photos, you can use the program’s built-in sharing features which can post to either your Twitter or Facebook feed.
The web browser version of Instagram contains more features, but Gramblr is a free way to upload images without the need for a web browser.