OA chat

Pure instant messaging — simple, fast, secure, and synced across all your devices. Over 200 million active users in four years.

SYNCED: You can access your messages from all your devices at once. Start typing on your phone and finish the message from your tablet or laptop. Never lose your data again.

FAST: Telegram is the fastest messaging app on the market, connecting people via a unique, distributed network of data centers around the globe.

UNLIMITED: You can send media and files, without any limits on their type and size. Your entire chat history will require no disk space on your device, and will be securely stored in the Telegram cloud for as long as you need it.

POWERFUL: You can create group chats for up to 100,000 members, share large videos, documents of any type (.DOC, .MP3, .ZIP, etc.), and even set up bots for specific tasks. It's the perfect tool for hosting online communities and coordinating teamwork.

SECURE: We made it our mission to provide the best security combined with ease of use. Everything on Telegram, including chats, groups, media, etc. is encrypted using a combination of 256-bit symmetric AES encryption, 2048-bit RSA encryption, and Diffie–Hellman secure key exchange.