How To Type Bold On iPhone: Quick Text Formatting Trick

I spent years typing plain text on my iPhone before discovering this. One hidden menu changes everything, and it takes 10 seconds to find once you know where to look.

The trick isn’t in the keyboard itself—it’s buried in the text selection menu. Select any text, tap the arrow, and you’ll see formatting options most users never notice. No apps, no workarounds, just Apple’s built-in tools.

You’ll get bold, italics, and underline without switching keyboards or memorizing shortcuts. The formatting stays intact when pasting into Notes, Messages, or any app that supports rich text.

Works on any iPhone running iOS 13 or newer. Here’s how to unlock it.

What Youll Need

Instructions

Here’s the exact method I use to make text stand out without extra apps or workarounds.

Navigate to Settings on your iPhone, then tap General followed by Keyboard. Scroll down and select Text Replacement. This is where you’ll create a shortcut that automatically converts plain text into bold formatting when typed.

If you don’t see this option, ensure your device is running iOS 13 or later. Older versions may lack this feature, and you’ll need to update first. The setting is buried a few layers deep, so take your time to locate it.

Tap the + icon in the top-right corner to add a new replacement. In the Phrase field, type the word or phrase you want to appear in bold. Then, in the Shortcut field, type a unique trigger—like b or bold—that you’ll use to activate it.

I recommend using a trigger that’s easy to remember but unlikely to appear in normal typing, like ##b##. This prevents accidental activations when you’re typing quickly. Once done, tap Save in the top-right corner.

Open any app where you can type, like Messages or Notes. Type the trigger you set (e.g., ##b##), followed by a space. The phrase you entered earlier should now appear in bold. If it doesn’t, double-check that the shortcut was saved correctly in Text Replacement.

This method works across most iOS apps, including Mail and third-party messaging apps. However, some apps like WhatsApp or Snapchat may override iOS text formatting, so results can vary.

Now that it’s set up, you can use this shortcut anytime. Just type your trigger, add a space, and the bold text will appear instantly. For example, if you set ##b## as your trigger for the word Urgent, typing ##b## Urgent will convert it to Urgent in bold.

If you want multiple bold phrases, create separate shortcuts for each. You can have as many as you need, but keep the triggers distinct to avoid conflicts. This keeps your typing efficient without sacrificing clarity.

If the bold text doesn’t show up, first ensure you typed the trigger exactly as saved, including any special characters. Then, check that Predictive Text is enabled in Keyboard Settings, as this feature relies on it. Restarting your iPhone can also resolve temporary glitches.

For apps that don’t support this method, consider using a third-party keyboard like Gboard or SwiftKey, which offer built-in text formatting options. These can be a reliable alternative if the native method fails.

Tips and Common Mistakes

Here are some practical insights to help you master this text formatting trick without frustration.

Trigger Selection: In Step 2, when choosing your shortcut trigger, avoid common words or letter combinations you might type normally. I learned this the hard way after accidentally turning every “the” into bold text. Stick with something unique like the suggested ##b## or similar.

Testing Before Relying: Always test your shortcut in Step 3 before you need it for something important. I once created a shortcut for a client presentation, only to discover it didn’t work in Mail until after I’d sent the message. A quick test in Notes first would have saved me that embarrassment.

App Compatibility Check: Remember that Step 3 mentions this won’t work in all apps. Before committing to this method for a specific app, test it there first. Some messaging apps, as noted, have their own formatting systems that override iOS’s text replacement.

Predictive Text Dependency: The troubleshooting in Step 5 mentions Predictive Text must be enabled. This is crucial—if you’ve turned this off for privacy reasons, you’ll need to weigh the convenience of text replacement against your preferences. There’s no workaround for this requirement.

Frequently Asked Questions

Now you know how to bold text on your iPhone with ease! Whether you’re using the built-in formatting options in apps like Notes or third-party keyboards, bolding is just a few taps away. 💡 Try it out in your next message or note and make your text stand out!