You can enlarge emojis on WhatsApp… or something like that. While you can't make an emoji that you place within a line of text larger, you can place a larger emoji yourself without any text. You can also place large emojis with emoji stickers. Stickers are significantly larger than standard emojis. It is possible to add emoji sticker packs to WhatsApp. This wikiHow teaches you how to post large emojis on WhatsApp.
Steps
Method 1 of 2: Post larger emojis

Step 1. Open WhatsApp
It's a green icon with a white speech bubble outline with a phone in the middle. Tap the icon on your home screen or in the Apps menu to open WhatsApp.
If your WhatsApp account isn't verified on your phone, you'll need to confirm your number before continuing

Step #2. Tap on Chats
This tab is located at the bottom of the screen (iPhone) or at the top of the screen (Android).
When WhatsApp opens a conversation, first tap the "Back" button in the top left corner of the screen

Step #3. Open a conversation
Tap the name of the contact you're talking to to open the conversation. You can also tap the green speech bubble icon and select a contact to start a new conversation.

Step #4. Tap on the text box
This is at the bottom of the screen. Doing this will bring up your phone's keyboard.

Step 5. Tap on the emoji button
On an iPhone, tap the smiley face in the lower-left corner of the keyboard. You may need to hold down the globe icon here first to show the smiley icon. On Android, tap the smiley icon on the keyboard, or press and hold the Enter button.

Step 6. Enter an emoji without text
If you post an emoji with text, it will be displayed in normal size. However, there are three different sizes for emojis that are placed without text. They are as follows:
- 1 emoji - Sending one emoji and nothing else will show the largest possible emoji.
- 2 emojis - If you send two emojis and nothing else, you will get slightly smaller emojis than if you only send one.
- 3 emojis - If you send three emojis and nothing else, you will get emojis that are only slightly larger than the emojis sent with accompanying text.
- 4 or more emojis - If you send four or more emojis, you get emojis that are the same size as if you were sending them with text.

Step 7. Tap on the 'Send' button
It's a flat paper shape icon to the right of the text box, although some Android versions have a check mark here. Doing so will send your enlarged emoji.
Method 2 of 2: Using stickers

Step 1. Open WhatsApp
This is a green app with a white outline of a speech bubble on it.
If your WhatsApp account is not verified on your phone, you will need to confirm your number before proceeding

Step #2. Tap on Chats
This tab is located at the bottom of the screen (iPhone) or at the top of the screen (Android).
When WhatsApp opens a conversation, first tap the "Back" button in the top left corner of the screen

Step #3. Open a conversation
Tap the name of the contact you're talking to to open the conversation. You can also tap the green speech bubble icon and select a contact to start a new conversation.

Step #4. Tap on the text box
This is at the bottom of the screen; doing this will show your phone's keyboard.
Step 5. Tap on the emoji button in the text field
This is the icon that looks like a smiley face. It's on the left side of the text bar.
Step 6. Tap on the sticker icon
This is the icon that looks like a sheet of paper. It's at the bottom of the list of emojis.
Step 7. Tap on the + icon
This shows a list of the available sticker packs.
Step 8. Scroll down and tap on Download More Strickers
Shows sticker apps in the Google Play Store or the App Store.
Step 9. Tap on a sticker pack with emojis in it
This will open the page where you can download the sticker pack.
Step 10. Tap Install or TO TAKE.
This will download the app to your iPhone or Android phone.
Step 11. Tap on Open
When the app has finished downloading, tap To open in the App Store or Google Play Store to open the store.
Step 12. Find a sticker pack that you want to add to WhatsApp
Each app will be a little different. Some have categorized packages that you can add to WhatsApp. With others, you can create your own pack by selecting the stickers you want to add. Find the option to add the sticker pack to WhatsApp and tap it.
Step 13. Return to your conversation on WhatsApp
Tap WhatsApp on your home screen and tap the conversation you were in.
Step 14. Open the sticker menu in the text field
Tap the emoji icon next to the text field, then tap the sticker icon.
Step 15. Tap the sticker pack you just installed
This shows the stickers in the package.
Step 16. Tap on a sticker
This will place the sticker in the WhatsApp chat.