Claude User Guide: Email Registration & Login, Logging Out and Switching Accounts, and Multi-Device Management Guide

This Claude user guide covers only the basic account-related operations: how to register and log in to Claude via email/Google, how to log out and switch accounts, and how to avoid session confusion when using multiple devices at the same time. Many people assume Claude has a “username and password,” but in practice it more commonly uses email magic-link verification for login, so the flow is a bit different from other products. Follow the steps below and you can essentially get login, switching, and security management sorted out in one go.

Claude Registration & Login: How to Choose Between Email Link and Google Authorization

After opening Claude’s official website, the common sign-in methods are “Sign in with email (send a verification link)” or “Continue with Google.” If you choose email, enter your address and submit; Claude will send you an email with a login button/link. Click it to complete Claude login in your browser and automatically create an account. If you choose Google, it’s standard OAuth authorization—ideal for people who don’t want to keep checking email back and forth.

Practical tip: If you often use Claude on multiple devices, it’s best to stick to one method (always use the same email, or always use the same Google account) so account switching stays clearer later. When using email login, try not to use email rules that automatically rewrite aliases (e.g., casually switching between different aliases); otherwise you may think it’s the same person, but Claude may treat them as different account identities.

Two Things to Do Right After Logging In: Confirm Account Ownership and Session Context

After entering Claude for the first time, go to your profile/account entry point to confirm the currently signed-in email or third-party account info, to avoid “it looks like I’m logged in, but it’s actually a different account.” If you’re using Claude on a work computer, at an internet café, or on a temporary device, it’s recommended to log in directly in an incognito/private window and log out immediately when you’re done—this makes leftover sessions least likely.

If multiple people use the same computer, the most reliable approach is to create a separate browser Profile for each Claude account (supported by both Chrome and Edge). That way, each Profile’s cookies won’t affect the others, and Claude is less likely to keep bouncing back to the login page or mixing up accounts.

How to Log Out and Switch Accounts on Claude: Don’t Just Close the Tab

When switching Claude accounts, the correct order is: first click “Log out” in the Claude interface; after you confirm you’re back on the login page, then log in with another account. Simply closing the tab or logging in with a different email directly can leave the old session active, making you think the switch succeeded when you’re actually still using the original Claude account.

If you’re already seeing “no matter how I log in, it’s still the same account,” log out of Claude first, then clear the site’s cookies (clearing only Claude-related cookies is enough), and then go through the email link or Google authorization login again. Also note when opening multiple windows: within the same browser and the same Profile, Claude will maintain only one primary login state; keeping two accounts online at the same time will usually kick each other off.

Using Claude Across Multiple Devices: How to Keep Phone, Tablet, and Computer from Conflicting

Claude allows you to log in on multiple devices, but to avoid frequent verification prompts or session expirations, try not to switch between multiple accounts on the same device too often. In my experience: keep your “main account” on your primary computer, and keep a “backup/test account” in another browser Profile or on another device—Claude will be much more stable.

When logging in to Claude on a public network, try not to open the email verification link a second time inside a chat app; the most reliable method is to open the link directly in the email app on the device you’re currently using to log in and complete Claude sign-in there. Log out promptly when you’re done, and check whether the browser saved your account automatically, to prevent Claude from opening straight into your session the next time.

Common Claude Login Sticking Points: Not Receiving Email and Dealing with Login Loops

If you don’t receive the Claude login email, first check Spam/Junk and Promotions/Subscriptions, then search for sender keywords like “Anthropic” or “Claude.” Corporate email systems may block external verification emails; if necessary, switch to a more reliable personal email to complete Claude registration and login.

If you run into a Claude login loop (you click the link and it takes you back to the login page), first check: whether you have strict ad blocking enabled, whether third-party cookies are disabled, and whether you’re repeatedly clicking old links in multiple windows. Disable blocking extensions and retry the login with only one window open—this usually fixes it; if not, clear Claude site cookies and try again.