How to send GIFs on WhatsApp
You can text a GIF on your iPhone to add expression to your messages. To text a GIF, you can use either your Messages app's built-in GIF keyboard or a third-party app.
How to Send GIFs, Stickers, and GIPHY Text in iMessage
Tap the text bar to open the keyboard and tap the GIF icon in the menu bar. There, you will see many GIFs. Pick or lookup up your preferred GIF, then tap to send.
You can send GIFs to individual or group chats.
If your GIF file is not playing or looping, it might be because the file is too large. If it's more than 1080 pixels high or 1920 pixels wide, you'll need to reduce the size. There are a number of free, online tools of varying sophistication that you can use.
Send and save GIFs on your iPhone, iPad, or iPod touch
Open your native messaging app and write your text message. Select the smiley face, then in the bottom right of the screen, tap on GIF. Search for a GIF using the search bar, or browse the most popular ones that automatically pop up. Select the GIF you want, and hit send to send your message.
WhatsApp already allows you to send existing videos but you can also convert them to GIFs if you wish. The only restriction on this is that the GIF can't be longer than six seconds in length, so videos exceeding that duration won't offer the conversion option.
To do this follow the steps above for sending a video but when you locate the Live photo press hard on it so that it pops out. Slide upwards and you'll see a menu appear which includes the option to Select as GIF. Select this and then you'll be able to include it in your message.
If you've saved a GIF to your phone or tablet, you should be able to find it here. Tap the GIF you want to send. A preview of the GIF will appear. Tap Send.
What to Know
Now you'll be able to switch between keyboards while texting on your iPhone. Open Snapchat and head over to the chat of the friend you want to send the GIF. Tap and hold the Globe icon to the left of the spacebar to display keyboard settings. Select Giphy from the list.