Discord is an instant messaging, voice, and video chat app that allows users to communicate with voice calls, video calls, text messaging, media, and files in private chats or as part of communities called "servers". It was first launched in 2015 as a means for people to easily communicate while playing PC games together. Discord runs on Windows, macOS, Android, iOS, iPadOS, Linux, and in web browsers. It is popular among the gaming community as it offers a way for video game players to communicate with each other and develop a community outside of the games themselves. Discord is centered around managing communities, and communication tools such as voice and video calls, persistent chat rooms, and integrations with other gamer-focused services are present. A server is a collection of persistent chat rooms and voice channels which can be accessed via invite links. Discord is decentralized and ad-free, and it is free to use. It can be used for business purposes, and custom Discord emojis are easy to create and add to servers. Discord is also used by students to connect with other verified students, discover servers for study groups or classes, and share their own servers for fellow students to join.