Slackmojis - A directory of the best custom slack emojis
Emoji Maker - Create custom Emoji based on Twemoji
My Slack Emoji - Turn your team photos into Slack emoji's
Emojidex - Emojis-as-a-service
Emoji Engine - A search engine for emoji 🔎
Mojipic.app - When a couple emoji can't convey how you feel.