> For the complete documentation index, see [llms.txt](https://aivatar.gitbook.io/user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aivatar.gitbook.io/user-guide/basic/how-to-start/signup.md).
# Sign up and log in
## Sign up
To use the AiVATAR service, sign up by clicking the `Sign in` button located at the top right of the page and creating an account in the Join pop-up window.
### 1. Sign up with Google Account
1. Click the `Sign up with GOOGLE account` button.
2. Please select the Google account you want to log in to.
3. Simply complete to sign up the AiVATAR service by entering your account password.
### 2. Sign up with E-mail address
1. Please enter the email you want to join and click the `Sign up` button.
2. Please check your email inbox to confirm your address.
3. And set a name and password, and tick Agree to the required terms.
## Log in
After creating your account and signing up, you can log in immediately.
{% hint style="info" %}
If you already have a registered account, the email input box will turn red and display the message 'The email you entered is already in use'.
{% endhint %}