What you can change on Facebook
Facebook does not let you change the font for your entire account or for all text you see in your feed. What you can change is the font style of text you write in posts, comments, and messages — and only for specific words or phrases, not whole paragraphs at once.
The platform offers a small set of text styles: bold, italic, strikethrough, and monospace (a fixed-width font used for code). You explore these styles before you post, and they show up that way for everyone who reads what you wrote. The fonts available are limited by design — Facebook keeps the feed consistent across all devices and browsers.
If you want to change the font you see when you read Facebook — the size, the typeface, the color — that depends on your device and browser settings, not Facebook itself. Those changes affect how Facebook looks on your screen only.
Key Takeaways
- You can make text bold, italic, strikethrough, or monospace in posts and comments by selecting the text and tapping the formatting button, or by typing special characters before and after your words.
- These font styles work in Facebook posts, comments, Messenger messages, and some other text fields, but not everywhere on the site.
- The formatting you explore shows up the same way for everyone who reads your post, regardless of their device or browser.
- To change the font size or typeface you see on Facebook, adjust your browser or device settings instead — Facebook itself does not offer a font preference menu.
How to format text in Facebook posts and comments
On mobile (iPhone or Android), the easiest method is to select the text you want to format, then tap the formatting button. Open Facebook, start typing your post or comment, and highlight the word or phrase you want to change. A menu will appear with options for Bold, Italic, and other styles. Tap the one you want, and the formatting applies when ready.
On desktop (Windows or Mac), you can use the same selection method: type your text, highlight it, and look for the formatting toolbar above the text box. The buttons show B for bold, I for italic, and an S with a line through it for strikethrough. Click the button that matches the style you want.
If the toolbar does not appear, or if you prefer to type the formatting codes yourself, you can use keyboard shortcuts or special characters. For bold, type an asterisk before and after the word: *bold text*. For italic, use underscores: _italic text_. For strikethrough, use tildes: ~~strikethrough~~. Type these exactly as shown, and Facebook will convert them to formatted text when you post.
Where these font changes work
Text formatting works in Facebook posts (the main feed), comments on posts, and direct messages in Messenger. It also works in some group posts and on your own profile timeline. However, formatting does not work in your profile bio, in page descriptions, in event details, or in some other text fields across the platform.
The best way to know if formatting will work is to try it: type your text with the codes or use the toolbar, and if the buttons are available, the formatting will stick. If you do not see a formatting toolbar and the keyboard shortcuts do not work, that text field does not support font styles.
Changing the font size and appearance you see on Facebook
If you want Facebook to look different on your screen — larger text, a different typeface, higher contrast — you are changing your browser or device settings, not Facebook's settings. Facebook does not have a built-in font size menu or theme selector (except for dark mode, which you can turn on in Settings).
On iPhone or Android, go to your device's Settings app, find Display or Accessibility, and look for Text Size or Font Size. Increasing the size there will make text larger across all apps, including Facebook. On Windows or Mac, open your browser (Chrome, Safari, Firefox, Edge), and use the zoom function: press Ctrl and the plus sign together (or Cmd and plus on Mac) to enlarge the page. You can also change your browser's default font in Settings, though this affects all websites, not just Facebook.
Dark mode on Facebook is the only appearance setting Facebook itself offers. To turn it on, open the Facebook app or website, go to Settings and Privacy, then Settings, scroll to Preferences, and toggle Dark Mode on. This changes the background from white to dark gray or black, which some people find easier to read in low light.
Why Facebook limits font options
Facebook restricts the fonts you can use because the platform runs on millions of devices with different screen sizes, operating systems, and browsers. If Facebook allowed you to upload custom fonts or choose from hundreds of typefaces, some devices would not be able to display them, and the feed would look broken or inconsistent.
By offering only a handful of standard text styles — bold, italic, and a few others — Facebook ensures that your post looks the same on an iPhone, an Android phone, a Windows laptop, and a Mac. The trade-off is less creative control over how your words appear, but more reliability across the platform.
Workarounds if you want more creative fonts
If you want to post text in a font that Facebook does not offer, you have two options: create an image with the text you want, or use a third-party font generator tool.
The image method is straightforward: use a design tool like Canva, Photoshop, or even Microsoft Word to create a graphic with your text in any font you like, then post the image to Facebook as you would any photo. People will see the text as part of the image, not as editable text. The downside is that text in images is not searchable, and it takes longer to create.
Font generator websites (search "Facebook font generator" or "fancy text generator") let you type text and convert it into Unicode characters that look like different fonts. You copy the result and paste it into Facebook. These tools work because they use special Unicode symbols that look like letters but are technically different characters. Results vary — some look good, others look cluttered — and not all devices display them the same way. Use them cautiously, as some people find them hard to read.
Frequently Asked Questions
Can I change the font for my entire Facebook profile?
No. Facebook does not allow you to set a default font for your profile, posts, or comments. You can only format individual words or phrases in posts and messages using bold, italic, strikethrough, or monospace styles. Each time you post, you choose which text to format.
Will the font changes I make show up the same way for everyone?
Yes. If you make text bold or italic in a post, everyone who reads that post will see it formatted the same way, regardless of what device or browser they use. Facebook applies the formatting on its servers, so it is consistent across all viewers.
Can I change the font in my Facebook messages?
Yes. The same formatting options work in Messenger. Type your message, select the text you want to format, and tap or click the formatting button. You can also use the keyboard shortcuts: asterisks for bold, underscores for italic, and tildes for strikethrough.
Why does the formatting toolbar not show up when I type?
Some text fields on Facebook do not support formatting — like your profile bio, page descriptions, or event details. If the toolbar does not appear, that field does not allow font styles. Try using the keyboard shortcuts instead; if those do not work either, formatting is not available in that location.
Does Facebook have a dark mode that changes the font?
Dark mode changes the background color and contrast, which can make text easier to read, but it does not change the actual font or typeface. To turn on dark mode, go to Settings and Privacy, then Settings, scroll to Preferences, and toggle Dark Mode on. The text will still be the same font — just displayed against a darker background.