Twitter is more fun when you customize your profile. You can change your image in the Profile tab under your account settings. Your image can be up to 700k in the following formats: JPG, GIF, or PNG. (Twitter no longer supports animated GIFs.)
Note: The thumbnail image chosen will only appear after you click "Save."
To change the location, website, picture, or bio listed on your profile, follow these steps:
If you'd like to change your profile background image or theme, please read How to Customize Your Twitter Design.
Our troubleshooting page has answers to common problems uploading profile photos.