Emoji Sets

Apple

Used on: iOS (iPhones), iPadOS (iPads), iPod Touch, macOS, tvOS (Apple TV), watchOS (Apple Watch)
Hidden Emojis

Apple Monochrome

Used on: AirPod Case, iPad, iPod, Apple Pencil, AirTag engravings

Twemoji

Used on: Twitter, Discord, Roblox
Hidden Emojis
More Details
Official Website
Official GitHub Repository

Twemoji 2

Used on: Twitter Fleets

Google

Used on: Android, YouTube, Google Meet, ChromeOS, Gboard, most Google services
Non-Standard (Emoji Kitchen on Android Gboard)

Microsoft

Used on: Windows, Windows Phone
Non-Standard (Ninja Cats)

Facebook

Used on: Facebook, Facebook Messenger

Facebook Messenger

Discontinued
Used on: Facebook Messenger

Samsung

Used on: Some Samsung phones

WhatsApp

Used on: WhatsApp

JoyPixels

Used on: Nintendo Switch, Netflix, Dropbox
Previously called EmojiOne
Open-Source
Official Website - All Emojis
Subsets: Animations - All Smiles - Flat Emoji - Patterns - Stickers

OpenMoji

Open-Source
Non-Standard
Official Website - All Emojis

emojidex

Open-Source
Non-Standard
Uploaded by Community
Official Website - All Emojis - Standard-Only

Mutant Standard

Open-Source
Non-Standard
Official Website

R74moji

Free-to-use with HTML script, includes faces and non-standard emojis
Used on: R74n
Non-Standard
Official Website
How To Add
All Emojis
Signal Sticker Pack

VK / ВКонтакте

Used on: VK
Imitates Apple's style

BitLife

Used on: BitLife (iOS - Android • PC/macOS)
Non-Standard

Telegram Animated

Used on: Telegram
Official Channel

LG

Used on: Old LG phones

HTC

Mozilla

Used on: Firefox OS

SoftBank

Docomo

au by KDDI

PlayStation

Used on: PS5, PS4

Animoji