Step 1. Go to the homepage and click on the symbol for your profile.
Step 2. Select Settings from the dropdown menu.
Step 3. Scroll to the bottom of your profile to locate Username under Profile Settings. To proceed, look for the text that reads You may change your username underneath your existing username.
Step 4. Right-click on your existing username and choose the pencil icon. You’ll be presented with a new window where you may enter the new username you want.
Step 5. After you change your username, you’ll notice your new Twitch URL at the bottom of the page.
Step 6. Select Update once you’ve given the account a new name. Your Twitch URL and username will be updated as a result.
Step 6. Select Update once you’ve given the account a new name. Your Twitch URL and username will be updated as a result.