The twitter background size depends on the screen resolution of the viewer. Theoretically it can display an endless resolution. Things to consider:

  • 85% of the visitors today have a resolution higher then 1024×768 (source)
  • Depending on the resolution twitter may overlap your twitter background

We suggest to create a background that is at least 1280×1024 pixels in size and preferably larger. Depending on the background and whether or not it can be nicely blended into a solid background color or not, we typically use 1600×1200, 1920×1200 and even 2048×1600 for some backgrounds.

Twitter background limits

Twitter has two basic rules for custom backgrounds:

  • They must be in PNG, GIF, or JPG format;
  • They must be smaller than 800kb.

If your image’s file size is too large, the easiest way to get it down is to use and image editing program or web app to shrink the image. Animated GIFs are not supported as background images.

 

Our resolution analytics: