Claude User Guide: From Sign-Up and Login to Account Linking and Multi-Device Switching

This Claude user guide focuses on clearly explaining three things: how to sign up and log in, how to straighten out the login method for your Claude account, and how to safely switch Claude accounts across multiple devices/browsers. If you follow the steps, you’ll basically stop running into small hassles like “logging into the wrong account, not finding conversations, or being stuck in a login loop.”

1. Registering a Claude Account: Choose the Right Entry Point and Login Method

After opening claude.ai, the page will provide common login options (for example, receiving a login link via email, or logging in with a third-party account). For first-time use, it’s recommended to prioritize a method tied to an email address you can reliably access long-term, so account recovery is easier. After registration, the system will automatically create a new Claude account workspace, and you can start chatting right away.

If you find you’re always being sent back to the login page, first check whether your browser is blocking third-party cookies or scripts, then refresh and try again. Corporate networks or certain privacy extensions can also cause login redirects to fail; temporarily disabling them often lets you enter your Claude account normally.

2. Login and Conversation Saving: Avoid “Not Seeing History”

Claude’s conversation history is usually tied to the Claude account you’re currently logged into, so the most common reason for “can’t find conversations” is logging into the wrong Claude account. You can first confirm the current email/third-party identity from the account entry point on the page, then go back to the history list to check. If you log in on different devices using different methods (for example, email on one and a third-party provider on another), you may also see inconsistent history.

3. Claude Account Linking Approach: Standardize on One Primary Login Method

Many people think “linking” means merging multiple login methods into a single Claude account, but in practice a more reliable approach is: choose one primary entry method from the start and ensure that email address can receive messages normally. From then on, have all devices log into the same Claude account using the same method, so your history, files, and settings won’t be split up. If you need to change your email, first check whether you can still log in via the original method and complete the verification process.

4. Switching Claude Accounts: The Fastest Method and Tips to Avoid Mixing Accounts

When you need to switch Claude accounts, the most reliable approach is to log out of the current account first, then log in again to the other Claude account, to avoid having two accounts’ sessions mixed in the same browser. An even easier method is to use browser “profiles/multiple windows” and give each Claude account its own browser profile, so they won’t overwrite each other’s login state. On mobile and desktop, it’s also recommended to keep the same set of login methods to reduce history loss caused by logging into the wrong account.

If the page displays abnormally after switching, clear the site’s cache and cookies and then log in again; this usually resolves issues where you’re stuck in an old session. As long as you can confirm the currently logged-in Claude account is the same, multi-device syncing will be much more stable.