Note: this article only applies if you log in to Stitch using your email address and password. If signed up using your Facebook account, you won't need to manage your password on Stitch.
To change your Stitch password, perform the following steps:
Go to the Account Information page
Click the Change your password button
Type your current password in the box titled "Current password"
Type your new password in the box titled "New password" and also in the box that says "Confirm new password". Click the red Change password button and a pop up will confirm that your password has changed.