RightGIF - Less noise, better GIFs. A better /giphy for Slack.
Emojim - Click on an emoji to copy it!
GoGifApp - Free Slack GIFs App, multiple images to pick from at once
Emoji Homepage - Emoji Homepage is the easiest way to find and get emojis. Just type, copy and paste.
Camo - Use your iPhone or iPad as a pro webcam
Emojipedia - The online encyclopedia of emoji.