SocialSizes.io
Use this quick and simple inferface to create your next social media image for Facebook, Twitter and Instagram. Start by selecting your layout on the left. Once you've picked your layout you can start designing your social media image.
In the social media image maker you can change the background color, upload an image from your computer and design your next image just how you want it. You can add rectangles, circles and text as well as change the color of each item.
If you have idea on how to improve the editor. Please don't hesitate to contact me. My twitter is always open.