Gmail Offline is a built-in feature that lets you read, draft, and organize emails without an internet connection. It syncs a configurable number of days of email data to your computer through the Chrome browser. When your internet connection is restored, any emails you drafted or actions you took offline sync automatically. Gmail Offline is useful when your Wi-Fi cuts out unexpectedly, when you are in a location without available internet, or when you need to work on email during travel without reliable connectivity. This guide covers how to enable Gmail Offline, how to configure its sync and storage settings, and 10 practical tricks for using it effectively. For more Gmail productivity features, see our complete guide to Gmail tips and tricks.

What Is Gmail Offline and Why Would You Use It?

Wi-Fi is widely available, but not universally reliable. Gmail Offline exists for the moments when your connection drops unexpectedly, when you are in a location with no available internet, or when you are traveling and need to manage email during a flight or a drive. With Gmail Offline enabled, you can continue reading emails, drafting responses, and organizing your inbox while you wait for connectivity to return.

An earlier version of Gmail Offline existed as a separate Chrome extension that was difficult to install, slow to load, and had limited options. The current version is a native Gmail feature built directly into Gmail Settings. Google has streamlined the setup process and resolved the reliability issues that plagued the earlier extension.

How Do You Enable Gmail Offline?

To enable Gmail Offline, go to Gmail Settings > Offline tab and check “Enable offline mail.” You can also access this by opening Gmail Settings and clicking the Offline tab directly.

You will see several options to configure: how many days of messages to sync (7, 30, or 90 days), whether to keep offline data on your computer or remove it when you log out, and whether to download attachments for offline access. Customize these settings based on your needs, then click Save Changes.

Important: Gmail Offline requires an internet connection for initial setup, since it needs to sync your emails to local storage. If you try to enable it for the first time without a connection, it will not work. Additionally, individual Google Workspace (G Suite) users may not be able to enable Gmail Offline on their own — an administrator may need to enable the feature for your organization.

How Should You Configure Gmail Offline Settings?

Choosing your sync duration. Gmail Offline offers three options for how many days of messages to sync: 7, 30, or 90 days. If you typically work at the top of your inbox and rarely reference messages older than a week, 7 days is sufficient. If you frequently need historical context from older messages, choose 90 days. Longer sync durations require more local storage space.

Choosing your storage preference. You have two options: “Keep offline data on my computer” and “Remove offline data from my computer.” With the first option, your synced email data remains on your computer even after you log out of Gmail — the only way to delete it is to disable Gmail Offline entirely. With the second option, data is deleted every time you log out. “Keep offline data” is the better choice for personal devices. “Remove offline data” is the better choice for shared devices or situations where privacy is a concern.

Handling attachments. When you enable Gmail Offline, the “Download attachments” option is checked by default. This means attachments are saved locally so you can access them offline. Keep this checked if you frequently need attachment access. Uncheck it if you rarely need attachments and want to conserve local storage space. Note that in offline mode, you cannot preview attachments inline — you must download them individually. For details on Gmail file limits, see our guide to Gmail attachment size limits.

What Tricks Help You Get the Most Out of Gmail Offline?

Set up Gmail Offline before you need it. Gmail Offline requires an internet connection for initial setup and email syncing. If your Wi-Fi cuts out and you have not already enabled the feature, you will not be able to access your emails offline. Enable it now, while you have a connection, so it is ready when you need it.

Bookmark Gmail in Chrome. If you do not already have Gmail bookmarked, add it now by clicking the star icon on the right side of the URL bar while you are in Gmail. This gives you one-click access to your offline inbox when the time comes, without needing to remember or type the URL.

Enable Gmail Offline for each account separately. Gmail Offline only syncs the account you used when you enabled it. If you manage multiple Gmail accounts through a single interface, your other accounts will not sync automatically. Enable Gmail Offline individually for each account you want to access offline.

Manage Chrome storage to avoid errors. Gmail Offline data is stored through the Chrome browser using encrypted local storage — not as regular files on your hard drive. Even if your computer has plenty of disk space, Chrome-specific storage may be limited. If you encounter storage issues, clear some browser cookies to free up room, reduce the number of synced days, or delete unwanted attachments from your inbox. For a full cleanup guide, see how to clean up Gmail.

Verify your cookie settings. Gmail Offline depends on cookies. If you use an incognito tab or a Chrome Guest profile, Gmail Offline will not function because these modes disable persistent cookie storage. To verify your settings, go to Chrome Settings > Advanced > Privacy and Security > Content Settings > Cookies. Make sure “mail.google.com” and “*.google.com” are not listed under “Clear on exit.” If they are, Gmail Offline data will be deleted every time you close Chrome, regardless of your Gmail storage preference.

Know how to delete offline data. If you need to switch devices or no longer need Gmail Offline, disable it in the same Settings area where you enabled it. Log out of Gmail, close your browser, and restart. This removes the synced email data from local storage. For extra assurance, clear your Chrome browser cookies after disabling the feature.

Jayson DeMers

Jayson is a long-time columnist for Forbes, Entrepreneur, BusinessInsider, Inc.com, and various other major media publications, where he has authored over 1,000 articles since 2012, covering technology, marketing, and entrepreneurship. He keynoted the 2013 MarketingProfs University, and won the “Entrepreneur Blogger of the Year” award in 2015 from the Oxford Center for Entrepreneurs. In 2010, he founded a marketing agency that appeared on the Inc. 5000 before selling it in January of 2019, and he is now the CEO of EmailAnalytics and OutreachBloom.