Manage account settings
Change your username, confirm a new email, choose appearance, or delete your account.
Open Account under Your account, or choose Account settings from the account menu at the top of the workspace.
Username and email
Edit Username or Email, then select Save changes. A new email must be confirmed using the message sent to that address. Your current address remains active until confirmation succeeds.
Changing your email requires a sign-in within the last five minutes. If asked, use Sign in again to confirm it’s you, complete sign-in, and return to account settings. If a confirmation link expires, sign in with the current address and request the change again.
Your display name, photo, and bio belong in Profile, not this screen.

Appearance
Under Appearance, choose System, Light, or Dark. The choice is saved in the current browser. System follows your device preference, so different browsers or devices may look different.
The top-bar theme control also lets you change between light and dark appearance.
Delete an account
In Danger Zone, choose Delete Account only when you intend to remove the account. Deletion requires a recent sign-in and a confirmation. It cancels your TeachKit subscription immediately and removes your content; your students lose access to your classes.
If a payment is still processing or subscription cancellation cannot finish, the account remains available so you can retry later. Read the error rather than assuming deletion succeeded.
Deleting an account is not the same as changing appearance, signing out, or managing a plan. Review and save any information you need before confirming deletion.