How to increase font size on a Mac without changing the resolution

Text that is too small on a Mac is rarely one problem with one fix. The menu bar can look fine while the Finder sidebar is unreadable. Every app can look right except the one open all day. macOS spreads the relevant controls across four different places, and only one of them is a single system wide setting. Knowing which control reaches which part of the screen is the difference between a five minute fix and an afternoon of dragging sliders back and forth.

There is also a shortcut that gets recommended constantly and is almost always the wrong first move: lowering the display resolution. It does make everything larger, including the parts no text setting reaches, and it costs screen space in every direction at once. It belongs at the end of the list, not the beginning.

Three complaints that sound the same and are not

"The font is too small on this Mac" covers at least three separate situations, and picking the wrong control wastes the most time here rather than later.

The first is a document problem. One PDF, one email, one webpage is set in small type while everything around it is fine. This needs per app zoom and nothing else. Changing a system setting for it means changing it back later.

The second is a chrome problem. The interface around the content is too small: sidebar labels, file names in the Finder, the clock, the labels under desktop icons. The content itself is fine because the app already lets it be scaled. This is what the Accessibility text size setting and the view options exist for, and it is the most common case on a high resolution laptop display used at arm's length.

The third is a density problem. Nothing is individually unreadable, but there is too much of it in too small an area, and reading anything means leaning in. This one is not a font problem at all. It is either a resolution decision or a case for reducing what is on screen, and turning up every text size in response tends to make it worse, because larger type in the same space means more scrolling and more crowding.

A quick test separates the second from the third. Increase the text size by two steps and use the Mac for an hour. If it feels better, the problem was size. If it feels busier and no easier, the problem was density, and the answer is fewer things competing for the same area.

The one slider that changes text in more than one app

The closest thing macOS has to a global text size lives in Accessibility, not in Displays. Choose Apple menu, then System Settings, then click Accessibility in the sidebar. Click Display, scroll down to Text, then click "Text size".

Apple is specific about what that slider reaches. Dragging it to the right increases the text size on the desktop, in app sidebars, and in the apps listed in that same pane. The condition attached to the last group matters: an app follows the slider only if it is set to Use Preferred Reading Size.

Below the slider is a list of apps, each with a pop-up menu beside it. That list is the real mechanism. Setting the slider sets a default, and the pop-up next to any individual app overrides it, so Mail can sit two steps larger than Notes without touching anything else. If an app shows Customized in App, a size was already chosen inside that app's own settings. Changing the size for that app in System Settings replaces the customization made in the app.

This is the setting to try first, for one reason: it is the only one that survives a restart, applies across several apps at once, and does not change how much fits on screen. Everything else in this article is either narrower in scope or costs something.

The limit is coverage. Apps that adopted the system reading size appear in that list. Apps that did not are unaffected, and there is no switch that forces them. A third party app with its own text size preference keeps using it. That is not a bug to work around, it is the boundary of what this control can do.

Per app zoom is a separate control, and it behaves differently

Several built in apps have their own size adjustment that has nothing to do with the Accessibility slider. In Calendar, go to the Day, Week, or Month view and press Command-Plus Sign (+) or Command-Minus Sign (-). The same keys work on an open message in Mail, on a conversation in Messages, and on an article in News.

Safari splits the behavior in a way worth knowing. Pressing Command-Plus Sign (+) on a webpage adjusts the size of the text only. Pressing Option-Command-Plus Sign (+) adjusts the size of everything on the page, images included. Sites that break when zoomed usually break under the second one, because the layout is being scaled rather than the type.

The practical difference between these keys and the Accessibility slider is scope and persistence. Per app zoom affects one app, sometimes one window, and it is the right tool for a document that happens to be set in small type. It is the wrong tool for a system that is uncomfortable everywhere, because it has to be reapplied app by app.

Pinch gestures on a trackpad or Magic Mouse do the same job on images, webpages and PDFs. They are faster than the keys and just as temporary.

Sidebars, the Finder, the desktop and the Dock each have their own size

Three parts of the interface that people usually mean by "everything is too small" are not covered by the text size slider at all, and each has a separate control.

Sidebar icons

Choose Apple menu, then System Settings, then click Appearance in the sidebar. There is a "Sidebar icon size" pop-up menu with a size choice. This changes the icons in app sidebars, and it is the only place that setting lives.

The Finder

Click the Finder in the Dock to open a window, then choose View, then Show View Options. Inside that panel there is a "Text size" pop-up menu, an icon size choice in Icon view and List view, and a thumbnail size in Gallery view. Two gaps are worth remembering before hunting for them: the text size cannot be changed in Gallery view, and the icon size cannot be changed in Column view.

The desktop

Control-click the desktop and choose Show View Options. The same two controls appear here, a "Text size" pop-up menu and an "Icon size" slider, and they apply only to the desktop.

The Dock

Choose Apple menu, then System Settings, then click Desktop & Dock in the sidebar. Drag the Size slider to change the Dock. The Magnification slider is separate and makes icons grow only while the pointer is over them, which is a different fix for the same complaint: it keeps the Dock small and still makes the target under the pointer readable.

What each control actually reaches

Control	Where it lives	What it changes	What it costs
Text size	Accessibility, then Display	Desktop text, app sidebars, participating apps	Nothing, but coverage is partial
Per app zoom	Command-Plus Sign (+) inside the app	One app, sometimes one window	Has to be reapplied
Sidebar icon size	Appearance	Icons in app sidebars	Nothing
View Options	Finder View menu, or Control-click the desktop	Finder and desktop text and icons	Set per window or per folder
Dock Size	Desktop & Dock	The Dock only	Larger Dock takes screen space
Larger Text	Displays	Everything on screen	Less fits on screen, may affect performance

The pattern in that table is the point. Every control that costs nothing is narrow. The one control that reaches everything is the one with a price attached.

Scaling the display reaches everything, and the menu bar pays for it

If text still feels small after the four controls above, the remaining option is resolution. Choose Apple menu, then System Settings, then click Displays in the sidebar, then click Larger Text. Apple describes this plainly: the Mac automatically uses the best resolution for the display, and reducing the resolution makes everything on the screen appear larger.

Two cautions come from Apple's own documentation rather than from folklore. Using a scaled resolution may affect performance. And depending on how the resolution is adjusted, some app windows may not fit entirely on the screen.

There is a third cost that nothing warns about, because it does not look like an error. Making everything larger reduces how much horizontal room exists, and the menu bar is the strip where that shortage shows up first. The menu bar holds two things competing for one line: the menus belonging to the app in front, which grow with the app, and the status icons on the right, which grow every time something is installed that wants to live there. Scale the display up and both sets get wider in relative terms while the bar does not. At that point the fix is not more room, it is fewer resident icons, which is what a menu bar manager for macOS is for. A tool that hides menu bar icons on a Mac keeps them reachable without keeping them visible, and a comparison of what these tools do differently is more useful than picking by icon.

Also worth knowing before experimenting: if the screen goes black after a resolution change, wait 15 seconds to see whether the Mac resets it, and press Esc to revert to the previously selected resolution if it does not.

Hover Text and Zoom cover what nothing else reaches

Two Accessibility features exist for the cases the size settings cannot fix, such as a small label inside a third party app that ignores the system reading size.

Hover Text shows a large version of whatever the pointer is over, in a separate high contrast window. Choose Apple menu, then System Settings, click Accessibility in the sidebar, then click Hover Text and turn on Hover Text, Hover Color, or Hover Typing. Hover Typing does the same thing for text as it is being typed.

Zoom magnifies the screen itself, either all of it or through an adjustable onscreen lens. It is in the same Accessibility list, and the setting most people want there is "Use keyboard shortcuts to zoom", which makes magnification something invoked for a moment rather than a permanent state.

Both of these are worth setting up even for someone who does not need them daily. They handle the exception without changing the baseline, which is exactly what the resolution setting cannot do.

What to change first

Start with the Text size slider in Accessibility, then set the per app pop-up menus next to the two or three apps used most. Change resolution only if that leaves something unreadable, and be aware that it takes room away from the menu bar. If the menu bar is the crowded part, thinning out what sits there is the cheaper fix, and Koffret exists for that.