Your Outlook inbox may show emails in a condensed, multi-line format that can feel cluttered. This view is called the Compact layout, which displays the sender, subject, and a preview on separate lines. You can switch to a cleaner, single-line view that shows all key information in one row. This article provides the steps to change your inbox layout in Outlook for Windows and on the web.
Key Takeaways: Switching Your Inbox Layout
- View > Layout > Message Preview: Controls the number of preview lines and switches between Compact and Single layouts in Outlook for Windows.
- View Settings > Other Settings > Compact View: The master switch for toggling between single-line and multi-line layouts in the desktop application.
- Settings > Mail > Layout > Message List: The location to change your inbox view from Compact to Single in Outlook on the web.
Understanding Outlook’s Inbox Layout Options
Outlook offers two primary layouts for your message list: Compact and Single. The Compact layout is the default in many installations. It uses two or three lines per email to show the sender, subject, and a snippet of the message body. This can make scanning for specific information slower.
The Single line layout condenses all critical details into one row. You see the sender, subject, date, and often flags or categories in a single line. This view maximizes the number of visible messages on your screen. Both layouts work with all account types, including Microsoft 365, Exchange, and IMAP.
Prerequisites for Changing the View
You need a working Outlook installation or web access to your account. The layout setting is stored per computer for the desktop app and per browser for the web version. Changing it on one device does not affect your view on another. The steps differ slightly between Outlook for Windows and Outlook on the web.
Steps to Switch to Single Line Layout in Outlook for Windows
Use these instructions for the Outlook desktop application included with Microsoft 365 or Office 2021/2019. The setting applies to the current mail folder only, but you can set it as a new default.
- Open the View tab
Navigate to the ribbon at the top of your Outlook window. Click on the View tab to reveal layout and arrangement options. - Access the Layout menu
Within the View tab, locate the Layout group. Click the Message Preview button. A dropdown menu will appear with preview options. - Select Off
In the Message Preview dropdown, choose Off. This action immediately switches your inbox from the multi-line Compact view to the Single line layout. Your emails will now display in one row. - Apply as a default view
To make this change permanent for all mail folders, click View Settings in the Current View group. In the Advanced View Settings dialog, click Other Settings. Find the Compact View checkbox and uncheck it. Click OK twice to apply.
Using the Reading Pane to Adjust the Layout
The position of the Reading Pane can influence how the Single line layout appears. You can change this setting from the same View tab.
- Go to View > Layout
On the View tab, find the Layout group again. - Choose Reading Pane
Click the Reading Pane button. Select Right, Bottom, or Off based on your preference. The Single line layout works well with the Reading Pane on the right.
Steps to Change the Layout in Outlook on the Web
For Outlook in your web browser, the settings are managed through the gear icon. This change is specific to the browser and device you are using.
- Open Outlook Settings
In your browser, go to Outlook.com or your organization’s Microsoft 365 portal and sign in. Click the gear icon in the top-right corner of the screen to open Settings. - Navigate to Mail Layout
In the Settings pane, click View all Outlook settings at the bottom. In the new window, select Mail from the left sidebar. Then, click Layout. - Select the Message List option
Within the Layout settings, find the Message List section. You will see a dropdown menu with two choices: Compact and Single. - Choose Single and save
Select Single from the dropdown menu. Your inbox will update instantly. Click Save at the top of the settings window to confirm your choice.
Common Mistakes and Layout Limitations
Message Preview Setting Reverts After Restart
If your inbox returns to the Compact view after closing Outlook, the default view was not saved. You only changed the preview for the current session. Use the View Settings > Other Settings method described in the Windows steps to uncheck Compact View permanently. This modifies the underlying view definition.
Single Line Layout Shows Truncated Information
The Single line layout has limited horizontal space. Long subject lines or sender names may be cut off. You can adjust column widths manually. In the desktop app, hover your mouse between column headers like From and Subject. Click and drag to resize. This change is saved for the current folder view.
Change Does Not Apply to All Folders
Altering the layout for your Inbox does not automatically update Sent Items or other custom folders. You must apply the change to each folder individually. In Outlook for Windows, select the desired folder and repeat the View > Layout > Message Preview > Off steps. Consider creating a custom view if you need consistency across many folders.
Outlook Inbox Layouts: Compact vs Single
| Item | Compact Layout | Single Line Layout |
|---|---|---|
| Lines per message | Two or three | One |
| Information density | Lower, more spaced out | Higher, more condensed |
| Best for | Quickly previewing message content | Scanning more emails at once |
| Default in Outlook | Yes, for most new installations | No |
| Customizable preview lines | Yes, choose 1, 2, or 3 lines | No preview snippet |
You can now configure your Outlook inbox to show emails in a clean, single-line format. Use the View tab in the desktop app or the Layout settings on the web. For a more advanced setup, create a custom view via View > Current View > Change View > Manage Views to save your preferred column widths and sorting with the Single layout. This gives you full control over your message list appearance.