Telegram is a cloud-based messaging app that allows users to send messages, photos, videos, and files of any type. It is known for its focus on speed and security, offering end-to-end encryption for secret chats and a variety of features like channels and bots. Launched in 2013 by Pavel Durov, Telegram has gained popularity for its user-friendly interface and commitment to privacy. Users can create groups with up to 200,000 members and share large files, making it a versatile platform for both personal and professional communication.